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  • 1.
    Bertoni, Alessandro
    et al.
    Blekinge Tekniska Högskola, Fakulteten för teknikvetenskaper, Institutionen för maskinteknik.
    Bertoni, Marco
    Blekinge Tekniska Högskola, Fakulteten för teknikvetenskaper, Institutionen för maskinteknik.
    Johansson, Christian
    Blekinge Tekniska Högskola, Fakulteten för teknikvetenskaper, Institutionen för maskinteknik.
    Analysing the effects of value drivers and knowledge maturity in preliminary design decision-making.2015Ingår i: ICED 15, VOL 10: DESIGN INFORMATION AND KNOWLEDGE MANAGEMENT, Design Society , 2015Konferensbidrag (Refereegranskat)
    Abstract [en]

    The paper presents the results of a three-days experiment to test the use of informationfrom a value assessment model and from a knowledge maturity scale in decisionmakingin preliminary design. A visual analogue scale was used to collect individualinformation from designers through questionnaires. Bivariate statistical analysis wasapplied to study the correlations between both the use of value drivers and knowledgematurity and the designers' awareness of the design problem to be addressed. Resultsshow that value drivers and knowledge maturity information increase the decisionmakers’ awareness of (1) the different perceptions of design team members about theneeds to be satisfied and (2) the technical solution to be developed in the productconcept under consideration.

  • 2.
    Bertoni, Alessandro
    et al.
    Blekinge Tekniska Högskola, Fakulteten för teknikvetenskaper, Institutionen för maskinteknik.
    Bertoni, Marco
    Blekinge Tekniska Högskola, Fakulteten för teknikvetenskaper, Institutionen för maskinteknik.
    Massimo, Panarotto
    Blekinge Tekniska Högskola, Fakulteten för teknikvetenskaper, Institutionen för maskinteknik.
    Christian, Johansson
    Blekinge Tekniska Högskola, Fakulteten för teknikvetenskaper, Institutionen för maskinteknik.
    Tobias, Larsson
    Blekinge Tekniska Högskola, Fakulteten för teknikvetenskaper, Institutionen för maskinteknik.
    Expanding Value Driven Design to meet Lean Product Service Development2015Ingår i: 7TH INDUSTRIAL PRODUCT-SERVICE SYSTEMS CONFERENCE: IPSS, INDUSTRY TRANSFORMATION FOR SUSTAINABILITY AND BUSINESS / [ed] Xavier Boucher and Daniel Brissaud, Elsevier, 2015, Vol. 30, s. 197-202Konferensbidrag (Refereegranskat)
    Abstract [en]

    The paper presents a discussion about gaps and opportunities for cross-pollination between Value Driven Design and Lean Product Service Development to promote the use of value-driven method and tools since the preliminary design stages. In particular the paper discusses how methods and tools developed in Value Driven Design have the potential to be applied in the preliminary design stage in the context of Lean Product Service Development. The paper concludes by defining a research area on Value Innovation method and tools for preliminary Lean Product Service Development.

  • 3.
    Bertoni, Alessandro
    et al.
    Blekinge Tekniska Högskola, Fakulteten för teknikvetenskaper, Institutionen för maskinteknik.
    Marco, Bertoni
    Blekinge Tekniska Högskola, Fakulteten för teknikvetenskaper, Institutionen för maskinteknik.
    Massimo, Panarotto
    Blekinge Tekniska Högskola, Fakulteten för teknikvetenskaper, Institutionen för maskinteknik.
    Christian, Johansson
    Blekinge Tekniska Högskola, Fakulteten för teknikvetenskaper, Institutionen för maskinteknik.
    Larsson, Tobias
    Blekinge Tekniska Högskola, Fakulteten för teknikvetenskaper, Institutionen för maskinteknik.
    Value-driven product service systems development: Methods and industrial applications2016Ingår i: CIRP - Journal of Manufacturing Science and Technology, ISSN 1755-5817, E-ISSN 1878-0016, Vol. 15, s. 42-55Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    In recent times a service-dominant logic is permeating the design of complex systems. However, in spite of their appeal, initiatives such as Product Service Systems (PSS) have not become mainstream, and methods are lacking to support this transition. This paper argues that methodological guidance, as well as tools for decision support, may be found in the research field of Value Driven Design (VDD), which originates in the realm of Systems Engineering. The paper objective is to elaborate on gaps and opportunities for cross-pollination between VDD and PSS. The results of a systematic review of methods and tools for design decision support highlight the opportunity for introducing optimization models derived from VDD in the PSS design process, while the latter can enrich VDD research with a more qualitative value assessment logic. The paper summarizes this integration in a methodological approach, and exemplifies its application in case studies mainly from the aerospace and road construction equipment sector.

  • 4.
    Bertoni, Marco
    et al.
    Blekinge Tekniska Högskola, Fakulteten för teknikvetenskaper, Institutionen för maskinteknik.
    Bertoni, Alessandro
    Blekinge Tekniska Högskola, Fakulteten för teknikvetenskaper, Institutionen för maskinteknik.
    Johansson, Christian
    Blekinge Tekniska Högskola, Fakulteten för teknikvetenskaper, Institutionen för maskinteknik.
    Knowledge Enabled Engineering2015Ingår i: International Workshop of Advanced Manufacturing and Automation, Trans Tech Publications Inc., 2015Konferensbidrag (Refereegranskat)
    Abstract [en]

    The development of complex product-service combinations challenges the existing practices for engineering knowledge management. The objective of the paper is to highlight how such practices need to change to meet the engineers’ demand for knowledge when developing “functions” instead of merely hardware. It further proposes Knowledge Enabled Engineering (KEE) as an umbrella term that collects engineering knowledge management methods and tools inspired by the second wave of knowledge management, and that are aimed to meet needs of today’s modern knowledge workers in engineering organizations. The current state of readiness of these approaches is eventually described together with results from verification and validation activities.

  • 5. Bertoni, Marco
    et al.
    Bordegoni, Monica
    Johansson, Christian
    Luleå Technical University.
    Larsson, Tobias
    Luleå Technical University.
    Pilot specifications definition guidelines for the implementation of a KEE solution in the aeronautical domain2008Ingår i: CIRP Design Conference 2008 / [ed] Fred J. A. M. van Houten, Laboratory of Design, Production and Management, Faculty of Engineering Technology, Univ. of Twente , 2008Konferensbidrag (Refereegranskat)
    Abstract [en]

    Designing and implementing a Knowledge Management System (KMS) in a Virtual Enterprise is a labour intensive and risky task. Solution prototypes (Pilots) are usually built to verify system effectiveness prior to final implementation. The paper proposes a methodology to guide this Pilot specifications definition process. These guidelines support engineers and knowledge experts in collaboratively defining functionalities, services, software components and performance indicators of the prototype. The methodology has been conceived and applied within the European project VIVACE, to support the development of a Knowledge Enabled Engineering (KEE) system in the aeronautical domain.

  • 6.
    Bertoni, Marco
    et al.
    Luleå tekniska universitet.
    Chirumalla, Koteshwar
    Luleå tekniska universitet.
    Johansson, Christian
    Luleå tekniska universitet.
    Social technologies for cross-functional product development: SWOT analysis and implications2012Ingår i: Proceedings of the Annual Hawaii International Conference on System Sciences, Los Alamos, CA, USA: IEEE conference proceedings, 2012, Vol. 45, s. 3918-3927Konferensbidrag (Refereegranskat)
    Abstract [en]

    Innovation is triggered by the cross-pollination of fields and disciplines. In product development, this means bringing together people with different expertise to develop breakthrough product and service offers. In spite of their great potential, cross-functional efforts are not yet adequately supported from a knowledge perspective, asking for a more open and bottom-up open approach to knowledge management. The paper aims to investigate how social technologies can enhance collaboration and knowledge sharing in complex, cross-functional and cross-organizational product development projects. It initially highlights the role of weak ties as enablers for more innovative design processes, especially when manufacturing companies move towards developing integrated offers mixing hardware, software and services. Emerging from data collected in two case studies conducted within the European aeronautical industry, it applies the Strength-Weaknesses-Opportunities-Threats (SWOT) framework to highlight how tools such as wikis, blogs, forum and microblogs can shorten and increase the quality of early design decisions. Furthermore it elaborates on how the design team can enhance its perception of the needs to be addressed and leverage its capability to develop solutions for the task at hand.

  • 7. Bertoni, Marco
    et al.
    Johansson, Christian
    Larsson, Tobias
    Methods and Tools for Knowledge Sharing in Product Development2011Ingår i: Innovation in Product Design: From CAD to Virtual Prototyping / [ed] Bordegoni, Monica; Rizzi, Caterina, New York: Springer , 2011, s. 37-53Kapitel i bok, del av antologi (Refereegranskat)
    Abstract [en]

    The emerging industrial business partnerships, which feature cross-functional and cross-company development efforts, raise the barrier for the establishment of effective knowledge sharing practices in the larger organization. This chapter aims to highlight the role of knowledge as a key enabler for effective engineering activities in the light of such emerging enterprise collaboration models. Knowledge Enabled Engineering (KEE) is presented as an approach to enhance the extended organization’s capability to establish effective collaboration among its parts, in spite of different organizational structures, technologies or processes. KEE is analysed in its constituent parts, highlighting areas, methods and tools that are particularly interesting for leveraging companies’ knowledge sharing capabilities.

  • 8. Bertoni, Marco
    et al.
    Johansson, Christian
    Luleå Technical University.
    Larsson, Tobias
    Luleå Technical University.
    Isaksson, Ola
    A methodology for KEE systems target cascading2008Ingår i: Proceedings of the 7th International Symposium on Tools and Methods of Competitive Engineering - TMCE 2008 / [ed] I. Horváth and Z. Rusák, Delft University of Technology , 2008, Vol. 2Konferensbidrag (Refereegranskat)
    Abstract [en]

    The main aim of this paper is to present a methodology developed within the European Project VIVACE to guide the design and implementation of a Knowledge Enabled Engineering (KEE) system in a Virtual Enterprise. The proposed methodology tries to overcome some of the limitations which characterise traditional methods for Target Cascading, promoting a more collaborative and iterative approach to derive system specifications (in terms of advanced knowledge functionalities) from initial high-level targets. Social and behavioural aspects of Knowledge Management play a crucial role when many different users, knowledge experts, and process owners are involved in the Knowledge Management System (KMS) development. A well designed methodology is needed, therefore, to enhance communication and information sharing among design teams, to promote requirements merging and to take care both of the technological and behavioural aspects of the implementation. Initial business targets have been step-by-step decomposed into a set of sub-problems (Service Requirements, Knowledge Issues, and Knowledge Challenges) in the form of simple sentences in natural language. Then Quality Function Deployment (QFD) matrixes have been used to identify the set of functionalities to be implemented in the system, addressing the most important knowledge-related problems outlined in the cascading activity.

  • 9. Chirumalla, Koteshwar
    et al.
    Bertoni, Alessandro
    Aditya, Aditya
    Johansson, Christian
    Blekinge Tekniska Högskola, Sektionen för ingenjörsvetenskap, Avdelningen för maskinteknik.
    Bertoni, Marco
    Blekinge Tekniska Högskola, Sektionen för ingenjörsvetenskap, Avdelningen för maskinteknik.
    Performance measurement framework for product-service systems development: a balanced scorecard approach2013Ingår i: International Journal of Technology Intelligence and Planning (IJTIP), ISSN 1740-2832, E-ISSN 1740-2840, Vol. 9, nr 2, s. 146-164Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    The paper proposes a framework for analysing the performances of product-service systems (PSSs) development processes using a balanced scorecard (BSC) as an instrument to guide the implementation and the evaluation of new methods and tools. Emerging from a case study in the aerospace industry, the paper discusses the main challenges in PSS development and proposes a performance measurement framework for PSS development based on multi-criteria indicators. Finally, the benefits of a framework for PSS development performance measurement are discussed.

  • 10. Chirumalla, Koteshwar
    et al.
    Bertoni, Alessandro
    Parida, Aditya
    Johansson, Christian
    Bertoni, Marco
    Blekinge Tekniska Högskola, Sektionen för ingenjörsvetenskap, Avdelningen för maskinteknik.
    Performance Measurement Framework for Product-Service System Development: A Balanced Scorecard Approach2013Ingår i: International Journal of Technology Intelligence and Planning (IJTIP), ISSN 1740-2832, E-ISSN 1740-2840, Vol. 9, nr 2, s. 146-164Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    The Product-Service System (PSS) paradigm is recognized as a means for companies to increase the value perceived by the customers, thus gaining competitive advantage beyond traditional ‘pure product’ offerings. Researches have shown the necessity to rethink design processes in a PSS context, in order to drive the successful integration of product and service features in early design phases. In the last few years, several new approaches have been proposed, however little attention has been paid on how to translate these approaches into action and on how to evaluate their performances and effectiveness. This paper proposes a framework for analysing the performances in PSS development process using a Balanced Scorecard approach, as a tool to guide the implementation and the evaluation of new methods and tools in the early design phases. The paper starts with discussing the main challenges encountered when designing PSS, and then, adopting an aerospace industry as an example, to propose an application of the Balance Scorecard for the implementation and measurement of PSS development. Finally, the main pros and cons are discussed in relation to strengths and weaknesses of using balanced scorecard in PSS development. The framework developed in this paper can provide a useful guidance for the managers in measuring the performances of the PSS development process.

  • 11.
    Chirumalla, Koteshwar
    et al.
    Luleå tekniska universitet.
    Bertoni, Marco
    Johansson, Christian
    Luleå tekniska universitet.
    Experience feedback using social media: from the product lifecycle phases to the design practices2013Ingår i: Product-Service Integration for Sustainable Solutions: Proceedings of the 5th CIRP International Conference on Industrial Product-Service Systems / [ed] Horst Meier, Berlin, Germany, 2013, Vol. 5, s. 459-471, artikel-id 043Konferensbidrag (Refereegranskat)
    Abstract [en]

    Many companies have been using lessons learned practices as one oftheir key knowledge management initiatives to capitalize on past experiences.For product development companies, learning from product lifecycle phasesgives a true competitive advantage to improve the next generation of products.However, companies are still struggling in capturing and sharing lessonslearned and applying them in new situations. Based on this consideration, thepaper proposes a video-based approach–using social media technologies–as away to leverage continuous capturing and sharing lessons learned from productlifecycle phases to design practices. The paper presents the findings of a casestudy within the aerospace industry, which investigates the current industrialpractices with regard to experience feedback, and illustrates the implementationof a video-based approach. Further, the conceptual mock-up of video-based lessons learned sharing portal and its social platform that are aimed to support the design practices are illustrated.

  • 12. Ericson, Åsa
    et al.
    Bergström, Mattias
    Johansson, Christian
    Luleå University of Technology.
    Larsson, Tobias
    Luleå University of Technology.
    On the way to knowledge awareness in early design2007Ingår i: / [ed] Frank-Lothar Krause, Berlin, Germany: Springer , 2007, s. 607-616Konferensbidrag (Refereegranskat)
    Abstract [en]

    This paper discusses views on decision support in product development to identify factors of relevance when designing computer-based decision sup- port for total offers. Providing services in form of physical artefacts of- fered as ‘functions per unit’ is at the heart of total offers. Total offers gain access to possibilities to ‘design in’ value added characteristics into the physical artefact, e.g., maintenance, monitoring, training, remanufacture. Contemporary computer tools seem to be insufficient to support a GO/NO GO decision for total offers. Relevant factors to take into consideration are to support learning and provide the decision makers with insights in a number of plausible ‘what-if’ scenarios to improve the solution space.

  • 13. Ericson, Åsa
    et al.
    Johansson, Christian
    Blekinge Tekniska Högskola, Sektionen för ingenjörsvetenskap, Avdelningen för maskinteknik.
    Nergård, Henrik
    Manufacturing knowledge: Going from production of things to designing value in use2015Ingår i: International Journal of Intelligent Decision Technologies, ISSN 1872-4981, E-ISSN 1875-8843, Vol. 9, nr 1, s. 79-89Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    A new vision in manufacturing is to develop product-service integrated value solutions. Today, few firms have fully realized this vision because they are not able to support the reasoning in the early stages of design. The purpose of this paper is to discuss engineers' cognitive challenge when replacing the core product rationale with value logic. The paper problematizes engineering design by dividing knowledge into the categories technically constructed (explicit) and socially constructed (tacit). In doing so, this study contributes the assumed effects of a perspective shift that could guide the development of computational tools.

  • 14.
    Holmqvist, Johan
    et al.
    Luleå tekniska universitet.
    Wenngren, Johan
    Luleå tekniska universitet.
    Ericson, Åsa
    Luleå tekniska universitet.
    Johansson, Christian
    Luleå tekniska universitet.
    Thor, Peter
    Luleå tekniska universitet.
    Sharing expertise: Easier said than done2011Ingår i: Functional thinking for value creation: Proceedings of the 3rd CIRP International Conference on Industrial Product Service Systems, Technische Universität Braunschweig, Braunschweig, Germany / [ed] Jürgen Hesselbach, Christoph Herrmann, Berlin: Springer Berlin/Heidelberg, 2011, Vol. 3, s. 201-206Konferensbidrag (Refereegranskat)
    Abstract [en]

    Manufacturing industry is expressing an increased interest in knowledge management due to the extension towards aservice provision business model. However, the inclusion of softer service aspects indicates that the common view onknowledge management as a way to control and monitor a technical process have limitations. Sharing expertise is anadditional way of managing knowledge particularly with the intentions to make experience based knowledgeorganizational available. By studying product developers’ daily work, especially how they perceive that they apply andshare knowledge, we problematize knowledge activities in product-service development to discuss the establishedknowledge management activities. The paper suggests some considerations to support the development of aknowledge base for product-service design.

  • 15.
    Johansson, Christian
    Blekinge Tekniska Högskola, Institutionen för programvaruteknik och datavetenskap.
    Computer Forensic Text Analysis with Open Source Software2003Självständigt arbete på avancerad nivå (magisterexamen)Studentuppsats (Examensarbete)
    Abstract [en]

    Detta papper koncentrerar sig på kriminaltekniska undersökningar av text, med fokus på användande av mjukvara med öppen källkod. Pappret diskuterar och undersöker olika tekniker för framtida automatisering av dessa undersökningar.

  • 16.
    Johansson, Christian
    Luleå tekniska universitet.
    Knowledge engineering in the virtual enterprise: exploring a maturity-based decision support2007Licentiatavhandling, sammanläggning (Övrigt vetenskapligt)
    Abstract [en]

    In product development, lead-time reduction, cost reduction, and quality improvement are issues that companies want to improve on to increase competitiveness. One recent approach to reach this - particularly in the aerospace industry where the complexity of product offers is steadily increasing - is to manage risk by forming virtual enterprises. A virtual enterprise is a network of partner companies that join on equal terms when an opportunity arises to develop a product offer, e.g. a jet engine offer, in a more agile manner than if any of the partners would realise it by themselves. They therefore team up to share risk, investment and resources - to in return also share revenue and profit. A driver for the formation of the virtual enterprise is the ability to effectively utilise partner knowledge assets. However, when sharing and managing knowledge effectively across the virtual enterprise, current practices have yet to evolve to meet the needs of knowledge workers, who may come from different aerospace companies, have different roles, belong to different disciplines and that may also be situated in geographically dispersed locations.

    Improving product development includes allowing developers from all disciplines to know - as early as possible in the product development process - more about the customer needs, the desired product properties, and the downstream impact of the decisions they choose to make throughout the process. Knowing about the impact in downstream phases would allow for significant time and cost savings due to the avoidance of unnecessary and expensive rework that would otherwise occur much further on in the product's life cycle.

    Among other things, a virtual enterprise can start organising and mapping the knowledge assets available in their teams, and information overload can be managed by assuring that the right knowledge ends up with the right person, to mention but a few things that can facilitate the everyday work of engineers and their colleagues. When working in a product development project, the virtual enterprise needs to assess the quality of the created knowledge as early as possible to devise the correct actions early. In this thesis, a Gated Maturity Assessment technique including the concept of knowledge maturity has been developed as an example of an improved stage-gate decision-making process. With this approach development teams are able to assess the knowledge maturity level in the content and rationale that is put forward as a basis for a decision - as opposed to only assessing the raw data of the results (i.e. thrust, weight, fuel burn, etc.). Knowledge maturity is used to support decision makers when in the process of assessing a decision base to make a decision whether to go ahead, abort the process, or order rework to be done. Naturally, if the decision base is poor, a decision to go ahead should probably not be taken, as the consequences might be negative. In assessing maturity, decision makers can determine at decision points if the knowledge base is good enough to move forward to the next step in the jet engine component design, if there is need for rework, and what specific areas need to be improved. Decision makers can divert and focus resources to areas of importance due to, for instance, too low maturity levels.

    Knowledge maturity is a way to - using a criteria scale that prescribes the knowledge needed at each level - help development teams assess and visualise how well they know what they know, and subsequently, what they need to know. This thesis explores the feasibility of using knowledge maturity as a way of supporting knowledge engineering in the context of a development process in aeronautics.

  • 17.
    Johansson, Christian
    Luleå tekniska universitet.
    Knowledge maturity as decision support in stage-gate product development: a case from the aerospace industry2009Doktorsavhandling, sammanläggning (Övrigt vetenskapligt)
    Abstract [en]

    In today’s fast-paced industry where fight for market share is fierce and reaching the market ahead of competition imperative, product development is a target for lead-time reductions. In this context, in product development in stage-gate processes, decisions need to be made even though knowledge and information are scarce and flawed. The challenge is how to support the decisions that are made in light of uncertainty and ambiguity. The thesis moves from analysing the role of the stage-gate process within the aerospace industry. The stage-gate process was more than a decision making mechanism, and instead a mechanism that facilitated communication, discussion and knowledge sharing between team members, as well as supported knowledge creation and shaping of the boundaries between people’s different perceptions of the knowledge base. However, the communicative and negotiative function of the stage-gate was highly dependent on the ability of the participating individuals to reflect on the status and quality of the available knowledge assets used throughout the process. To make this reflective activity an explicit part of the stage-gate practice, this thesis proposes the application of a knowledge maturity concept at the gates to raise the decision makers’ awareness of the status of the knowledge assets handled at the decision point. The knowledge maturity concept considers three basic dimensions: input, method/tool and experience/expertise in assessing the knowledge base maturity. The scale is intended to act as a boundary object, facilitating the knowledge creation process by highlighting the current status of the knowledge base and making stakeholders aware of the nature of the project’s uncertainties and ambiguities. In the knowledge maturity concept, its purpose is to support design teams at the gates in taking appropriate action, mitigating risk and focusing their efforts on improving the knowledge assets where it is needed most, regarding the situation at hand and, finally, to make more confident decisions.The thesis was developed within the EU FP6 VIVACE (Value Improvement through a Virtual Aeronautical Collaborative Enterprise) and EU FP7 CRESCENDO (Collaborative and Robust Engineering using Simulation Capability Enabling Next Design Optimisation) projects, and within the Faste Laboratory, a VINNOVA Excellence Centre involving partners from the Swedish manufacturing industry.

  • 18.
    Johansson, Christian
    Blekinge Tekniska Högskola, Fakulteten för teknikvetenskaper, Institutionen för maskinteknik.
    Managing Uncertainty and Ambiguity in Gates: Decision Making in Aerospace Product Development2014Ingår i: International Journal of Innovation and Technology Management (IJITM), ISSN 0219-8770, Vol. 11, nr 2Artikel i tidskrift (Refereegranskat)
    Abstract [sv]

    Artikeln behandlar beslutsfattande och informationshantering i formella stage-gate-processer (fas-grind). Modellen och beslutsmötet fungerade som ett diskussionsunderlag för vilken man kan utveckla planer för hur man förbättrar beslutet.

  • 19.
    Johansson, Christian
    Blekinge Tekniska Högskola, Fakulteten för teknikvetenskaper, Institutionen för maskinteknik.
    Reverse Engineered Design Automation: Applying Knowledge Based Engineering Techniques to a Case of Automotive Fixtures Design Configuration2019Ingår i: Proceedings of the Design Society: International Conference on Engineering Design, Cambridge University Press, 2019, Vol. 1, s. 1583-1592Konferensbidrag (Refereegranskat)
    Abstract [en]

    In the production of automotive body components, fixtures are an important part of the ongoing work on geometrical assurance. The fixture is uniquely defined for each component, and the design and configuration of these are time-consuming and takes a lot of effort. The objective with this paper is to explore the use of a design automation approach and application to semi-automate the configuration process of the fixture product. The paper presents an approach to automate the configuration of the fixtures in a flexible way, by reverse engineering the configuration of the fixture product from a generic blueprint that represents the expected outcome of the process, using a knowledge-based engineering approach applied to a computer aided design (CAD) environment. A reverse-engineered design automation toolbox for a CAD-software is developed. The toolbox is developed to lead a user through the configuration process, in the way that the experts want it done, end-to-end, making use of some unconventional solutions from a design automation perspective.

  • 20.
    Johansson, Christian
    et al.
    Luleå tekniska universitet.
    Bertoni, Alessandro
    Luleå tekniska universitet.
    Bertoni, Marco
    Luleå tekniska universitet.
    Towards assessing the value of aerospace components: a conceptual scenario2011Ingår i: mpacting society through engineering design: ICED 11 København, the 18th International Conference on Engineering Design / [ed] ve Culley, Ben Hicks, Tim McAloone, T.J. Howard, Glasgow, UK: The Design Society, 2011, Vol. 18, s. 226-235Konferensbidrag (Refereegranskat)
    Abstract [en]

    The development of complex products, characterized by long lifecycles and deep supply chains, requires enhanced capabilities to assess, in an early design stage, the value of a solution not merely from a requirement fulfillment perspective. The paper proposes a conceptual scenario, described in terms of activities, inputs, outputs, actors and mechanisms, which details how aircraft components can be developed and assessed with a focus on their value contribution at system level. The scenario proposes a set of methodological and technological tools needed to enable value assessment in preliminary design, and has been created and preliminary validated together with major European aerospace manufacturers. The importance of being able to communicate the lifecycle value contribution of design solutions during the development work emerged clearly from the study. In this spirit, an approach to visualize such contribution directly in a 3D CAD model (across a set of value criteria, dimensions and drivers) has been proposed and it is currently under development.

  • 21.
    Johansson, Christian
    et al.
    Luleå tekniska universitet.
    Chirumalla, Koteshwar
    Luleå tekniska universitet.
    Bertoni, Marco
    Luleå tekniska universitet.
    Isaksson, Ola
    Chalmers tekniska högskola.
    Capturing and sharing lessons learned across boundaries: a video-based approach2012Ingår i: Proceedings of the 20th European Conference on Information Systems, 2012, Vol. 20, s. 12-, artikel-id 236Konferensbidrag (Refereegranskat)
    Abstract [en]

    In light of emerging product development trends, such as Product-Service Systems, manufacturing organizations are obliged to collaborate across functional and organizational borders. Hence, companies are increasingly investigating how to leverage knowledge management practices to enhance their dynamic learning capabilities to achieve continuous process improvements. Many researchers assert that lessons learned practices are possible ways for organizational learning, which allows for continuous capturing and sharing of experiential knowledge across boundaries in order to learn both from mistakes and successes. However, many organizations fall short in capturing and sharing lessons from projects and applying them in new situations. The purpose of this paper is to propose a video-based approach and related guidelines for capturing and sharing lessons learned in a dynamic manner across functional and organizational boundaries. Based on laboratory experiments as well as validation activities conducted in collaboration with an aerospace manufacturer, this paper compares the video-based approach with a more traditional text-based approach of documenting lessons learned from projects. The paper describes the results of testing activities conducted with a video-based lessons learned prototype and the authors reflect on its implications for design practice management in the aerospace industry.

  • 22.
    Johansson, Christian
    et al.
    Blekinge Tekniska Högskola, Fakulteten för teknikvetenskaper, Institutionen för maskinteknik.
    Elfsberg, Jenny
    Volvo Construction Equipment, SWE.
    Larsson, Tobias
    Blekinge Tekniska Högskola, Fakulteten för teknikvetenskaper, Institutionen för maskinteknik.
    Frank, Martin
    Volvo Construction Equipment, SWE.
    Leifer, Larry
    Stanford University, USA.
    Nilsson, Niklas
    Blekinge Tekniska Högskola, Fakulteten för teknikvetenskaper, Institutionen för maskinteknik.
    Söderberg, Victor
    Blekinge Tekniska Högskola, Fakulteten för teknikvetenskaper, Institutionen för maskinteknik.
    Urban Mining as a Case for PSS2016Ingår i: PRODUCT-SERVICE SYSTEMS ACROSS LIFE CYCLE / [ed] Cavalieri, S; Ceretti, E; Tolio, T; Pezzotta, G, Elsevier, 2016, Vol. 47, s. 460-465Konferensbidrag (Refereegranskat)
    Abstract [en]

    Reports about the depletion and pollutant of the earth by human interference and the increasing need for urbanised areas require us to think differently about how we go about achieving this increased urbanisation. In this context, urban mining, where demolition sites are mined for increased recycling and value extraction. Due to high specialisation of construction equipment for this context, as well as sustainability being an important factor, product-service systems are suggested as a way forward in this area. This paper presents key topics that needs to be addressed when developing sustainable product-service systems for the urban mining segment. The idea is to transform from a traditional construction and demolition perspective towards a PSS-based construction product for an urban mining environment, incorporating a circular economy perspective. A modification to the common business model notation of business model canvas, with guiding questions is suggested. Opportunities for improved sustainability lies both in application – within an urban mining site – and in the enabling technology – when technology is specialised, owned by the provider, and utilised by multiple partners. 

  • 23.
    Johansson, Christian
    et al.
    Luleå tekniska universitet.
    Ericson, Åsa
    Luleå tekniska universitet.
    Visualization of knowledge maturity for product-service system development2011Ingår i: Research into Design: Supporting Sustainable Product Development / [ed] Amaresh Chakrabarti, Bangalore, India: Research Publishing Services, 2011, Vol. 3, s. 312-319Konferensbidrag (Refereegranskat)
    Abstract [en]

    An extension towards a service perspective in manufacturing firms challenge decision making in early development phases. This addition in business models challenges the established knowledge base, which is focused on product aspects. A service perspective makes it necessary to assess the team's competences in another way. The knowledge maturity scales presented in this paper stems from a method to judge technology readiness, yet the knowledge perspective adopted highlights the issue of whether this approach is readily adopted or not. In this paper, a pragmatic view of the term knowledge, as found in previous empirical data, is used to discuss and propose a way to visualize the current knowledge state in a development team. The paper concludes on a rationale for visualization of knowledge maturity. Based on this, further improvement of the scales to support a service perspective on products can be done.

  • 24.
    Johansson, Christian
    et al.
    Luleå tekniska universitet.
    Ericson, Åsa
    Luleå tekniska universitet.
    Holmqist, Johan
    Luleå tekniska universitet.
    Wenngren, Johan
    Luleå tekniska universitet.
    A quest for knowledge?2011Rapport (Övrigt vetenskapligt)
    Abstract [en]

    Today, a new knowledge economy and more service-based offerings are commonly mentioned as a challenge for manufacturing companies. This challenge addresses the companies’ knowledge base and the traditional engineering expertise areas. The report starts from an assumption that there are differences in how knowledge is managed, as well as differences in the intentions to why it is managed. Based on this assumption, the purpose in the report is two-folded. First, the purpose is to conceptualize different facets of knowledge within a framework of technical product development. Second, the purpose is that the report serves as a trigger for discussions and reflections on existing practices in industrial workshops. So, despite that the report does not provide the “right” answers to these questions; they still guide the work in our research:• What is actually managed in every-day engineering project work?• And, for what purposes?The work accounted for in the report comes from a literature review and our jointefforts in understanding the research area from a theoretical perspective. First general views on knowledge is presented, including its classification in different ways, compared to information and data, as well as its division into tacit and explicit knowledge, or practical skills and theoretical knowledge. Human factors, including how people search for information, is also presented. Then a more explicit focus on technical knowledge is presented, showing the shift from knowledge as an artefact to a social and personal perspective in recent years. This also encompasses discussing the capabilities and knowledge of an engineer. A contribution of this report is the conceptualization of different facets of engineering knowledge; especially the more social aspects of engineering knowledge have been highlighted.

  • 25.
    Johansson, Christian
    et al.
    Blekinge Tekniska Högskola, Institutionen för programvaruteknik och datavetenskap.
    Evertsson, Gustav
    Blekinge Tekniska Högskola, Institutionen för programvaruteknik och datavetenskap.
    Optimizing Genetic Algorithms for Time Critical Problems2003Självständigt arbete på avancerad nivå (magisterexamen)Studentuppsats (Examensarbete)
    Abstract [sv]

    Genetiska algoritmer har många egenskaper som gör dem till ett bra val när man ska lösa väldigt komplicerade problem. Prestandan för genetiska algoritmer påverkas av de parametrar som används. Optimering av parametrarna för genetiska algoritmer är ett av de mest populära forskningsområdena för genetiska algoritmer. En av anledningarna till detta är den komplexa relationen mellan parametrarna och faktorer så som komplexiteten av problemet. Detta arbete beskriver vad som händer när tidsfaktorn läggs till detta problem. En av de viktigaste parametrarna är populationsstorlek och vi har sett genom att testa en grupp med väl testade optimiseringsproblem att optimal populationsstorlek inte är samma när tidsfaktorn är inblandat.

  • 26.
    Johansson, Christian
    et al.
    Luleå tekniska universitet.
    Hicks, Ben
    University of Bath.
    Larsson, Andreas
    Lunds tekniska högskola.
    Bertoni, Marco
    Luleå tekniska universitet.
    Knowledge maturity as a means to support decision making during product-service systems development projects in the aerospace sector2011Ingår i: Project Management Journal, ISSN 8756-9728, E-ISSN 1938-9507, Vol. 42, nr 2, s. 32-50Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    Streamlining new product development forces companies to make decisions on preliminary information. This paper considers this challenge within the context of project management in the aerospace sector, and in particular the development of product-service systems.  The concept of knowledge maturity is explored as a means to provide practical decision support, which increases decision makers' awareness of the knowledge base and supports cross-boundary discussions on the perceived maturity of available knowledge, thereby identifying and mitigating limitations. Requirements are elicited from previous research on knowledge maturity in the aerospace industry and a knowledge maturity model is developed through five industry-based workshops.

  • 27.
    Johansson, Christian
    et al.
    Luleå tekniska universitet.
    Karlsson, Jan
    Luleå tekniska universitet.
    Kaplan, Alexander
    Luleå tekniska universitet.
    Bertoni, Marco
    Luleå tekniska universitet.
    Chiruumalla, Koteshwar
    Luleå tekniska universitet.
    Enhancing intra-cognitive communication between engineering designers and operators: a case study in the laser welding industry2012Ingår i: Proceedings of the 3rd IEEE International Conference on Cognitive Communications, Piscataway, NJ, USA: IEEE conference proceedings, 2012, Vol. 3, s. 493-497Konferensbidrag (Refereegranskat)
    Abstract [en]

    In manufacturing, metal parts can be joined using a laser as a welding tool, i.e. laser welding. Despite huge amount of research over the years, the process is neither sufficiently understood nor mathematically predictable. This study aims to holistically analyze the knowledge management issues occurring in laser welding. Emerging from observations and semi-structured interviews from industry and academy, the complexity and the criticalities of the process as well as the current knowledge transfers is explained and analyzed, using a knowledge lifecycle framework as a reference. Besides enhanced awareness of the limiting issues, information and knowledge visualization, e.g. knowledge maps, is identified as a key for progress in the community. The Matrix Flow Chart is suggested as an alternative descaled map of process changes.

  • 28.
    Johansson, Christian
    et al.
    Luleå University of Technology.
    Larsson, Andreas
    Luleå University of Technology.
    Virtual Meeting Interoperability: Discussing the need of support for heterogeneous meeting environments2006Ingår i: Proceedings of the Fourth IASTED International Conference on Knowledge Sharing and Collaborative Engineering / [ed] M. Boumedine, C. Touzet, 2006, Vol. 4, s. 92-97, artikel-id 532-076Konferensbidrag (Refereegranskat)
    Abstract [en]

    With more projects in today’s industry being global it is important to support the people collaborating in these projects. Travel is expensive and time consuming and is not viable in the long run. Although some travel is necessary it is important for people to meet virtually instead. In many cases it is difficult for companies to collaborate because they do not use the same tools for these virtual meetings. Due to restrictions with IT security it is also difficult and expensive to implement every new tool their partner companies use. One solution could be a portal that facilitates connecting users with different virtual meeting tools. Using Web Services to bridge the different protocols it would be possible to connect two software packages that are using different standards for virtual meetings. With a tool as this it would be possible for chosen companies to collaborate closely online although they have incompatible software packages. Companies can select their solutions on the basis of their needs and do not have to implement a new solution or modify their existing setup to accommodate new partner needs. Finally, people would only need to learn the one tool which is available in their own company.

  • 29.
    Johansson, Christian
    et al.
    Luleå University of Technology.
    Larsson, Andreas
    Luleå University of Technology.
    Larsson, Tobias
    Luleå University of Technology.
    Knowledge enabled engineering - knowledge lifecycle approach2007Konferensbidrag (Refereegranskat)
    Abstract [en]

    VIVACE is an EC-funded integrated project that addresses aeronautics´ vision for the year 2020. More specifically VIVACE intends to achieve cost reduction and time reduction in new aircraft development. VIVACE consists of three sub-projects where the two first extracts problems from aircraft and engine industries respectively. The third sub-project collects these problems and develops advanced capabilities (methods, tools, guidelines, etc.). The ’Knowledge Enabled Engineering’ (KEE) work package in sub-project three focuses issues on concerns associated with knowledge within an extended enterprise. This includes both Knowledge Based Engineering (KBE) issues, but also more general questions about engineering knowledge. The work starts in analysing requirements from use cases via finding existing solutions to conducting tests in the form of pilots. Finally the knowledge acquired is disseminated to both the aeronautics community and also to a wider audience in Europe and the rest of the world.

  • 30.
    Johansson, Christian
    et al.
    Luleå Technical University.
    Larsson, Andreas
    Luleå Technical University.
    Larsson, Tobias
    Luleå Technical University.
    Isaksson, Ola
    Gated maturity assessment - Supporting Gate Review Decisions with Knowledge Maturity Assessment2008Konferensbidrag (Refereegranskat)
    Abstract [en]

    In aeronautics industry today, companies collaborate closely in virtual enterprises to develop products and solutions that are more integrated and more complex, and that aims to target larger responsibilities regarding the product life-cycle. On top of this, lead-time and development costs needs to be reduced.<br/>The 7 Day Proposal (7DP) is the conceptual name of a framework wherein a customized proposal is produced by a virtual enterprise consortium within seven days from a received request for proposal. This is substantially shorter than what is current practice today and implies that new methods, tools and ways of working are needed. Today, in offer processes, time is lost because of insufficient, or immature, available information and knowledge at gate reviews when decisions are due, causing time consuming iterations. <br/>The Gated Maturity Assessment (GMA) concept is intended to help reduce these costly iterations by targeting the ambiguity at these gate reviews in order to reduce the uncertainty in decision base. <br/>Other frameworks using maturity include Technology Readiness Levels (TRL) and the Capability Maturity Model (CMM). TRL is an artefact-focused framework developed by NASA to assess space technology maturity. CMM is a process-focused framework for assessing organisations' software development process capability (maturity). <br/>The GMA is a concept for assessing the maturity of the knowledge that goes into a gate review (i.e. a decision document). The GMA is intended to support decision makers by assuring confidence in these decision points and thereby reducing the number of iterations, hereby reducing lead-time and increases the quality of the process.<br/>This paper reports on the development of the GMA concept from the 7DP use case, and also the development of a support tool intended for use in the 7DP process. <br/>Essentially, the 7DP process is a stage-gate process like many corporate product development processes with a number of decision gates. Therefore there is a future wish to move towards an engineering design context with this concept. <br/>The work is part of the 70 million € European project VIVACE where GMA is part of a Knowledge Enabled Engineering solution to the 7DP use case.

  • 31.
    Johansson, Christian
    et al.
    Blekinge Tekniska Högskola, Fakulteten för teknikvetenskaper, Institutionen för maskinteknik.
    Larsson, Tobias
    Blekinge Tekniska Högskola, Fakulteten för teknikvetenskaper, Institutionen för maskinteknik.
    Tatipala, Sravan
    Blekinge Tekniska Högskola, Fakulteten för teknikvetenskaper, Institutionen för maskinteknik.
    Product-Service Systems for Functional Offering of Automotive Fixtures: Using Design Automation as Enabler2017Ingår i: Procedia CIRP: 9th CIRP Conference on Industrial Product/Service-Systems (IPSS), Copenhagen, Elsevier, 2017, Vol. 64, s. 411-416Konferensbidrag (Refereegranskat)
    Abstract [en]

    In production of automotive components, control-measuring is an important activity to assure that geometries meet expected tolerances. This is done via randomly taking parts out of production for control-measuring in a fixture. This fixture is both a tedious and repetitive product to design and configure. The aim of this paper is therefore to present an approach to adopt a design automation strategy towards supporting the configuration of fixtures and to discuss opportunities for moving towards a Product-Service System-paradigm in this domain. This paper reports on a development of a design automation demonstrator to configure fixtures for control-measuring. The demonstrator has been developed in a commercial CAD-environment and will be deployed through a web-based interface. The paper concludes with a discussion on PSS-opportunities and how to drive this with a Knowledge-Based Engineering-modelling approach. 

  • 32.
    Johansson, Christian
    et al.
    Luleå tekniska universitet.
    Parida, Vinit
    Luleå tekniska universitet.
    Assessment of team based innovation in a Product Service System development process2011Ingår i: Research into Design: Supporting Sustainable Product Development / [ed] Amaresh Chakrabarti, Bangalore, India, 2011, Vol. 3, s. 711-718Konferensbidrag (Refereegranskat)
    Abstract [en]

    Innovation is often measured based on how the product performs on the market. This makes it difficult tomeasure the performance of a team since the time to develop a product may take several years. In this paperwe show the importance of creating a common ground and facilitation in a team, two aspects that is not easymeasure, but should be assessed. We also discuss innovation on three interrelated organizational levels, theoperational, which is the development team and in focus in this paper, the managerial and the strategic level.We found that companies need indicators to measure and/or assess performance on all three levels and thatmore research is needed to find the inter-links between the levels to prescribe measures and assessment points.

  • 33.
    Johansson, Christian
    et al.
    Luleå tekniska universitet.
    Parida, Vinit
    Luleå tekniska universitet.
    Bergström, Mattias
    Luleå tekniska universitet.
    Exploring challenges for innovation-driven virtual enterprises2009Ingår i: Research into Design: Supporting multiple facets of product development / [ed] Amaresh Chakrabarti, Singapore: Research Publishing Services, 2009, Vol. 2, s. 568-575Konferensbidrag (Refereegranskat)
    Abstract [en]

    Several studies have suggested virtual enterprises (VEs) as a promising new form of organization. VEs are created to gain several benefits, for example, risk-and-revenue sharing, entering new markets, etc. However, in this study we focus on increasing the innovation in the VE consortiums. Based on past experience and knowledge from related fields, we argue that VE consortiums in the Swedish industry are rare. Thus, this study highlights and explores the challenges, particularly four areas: networking capability, information and communication technology (ICT) usage, knowledge engineering, and team based innovation. These areas contribute to the facilitation of VE creation and its effective operation. Each of these areas is discussed and propositions are formed which will guide the future research. Finally, we have discussed the concept of innovation driven virtual enterprise that combines open innovation ideology with the virtual enterprise concept.

  • 34.
    Johansson, Christian
    et al.
    Luleå tekniska universitet.
    Parida, Vinit
    Luleå tekniska universitet.
    Larsson, Andreas
    Luleå tekniska universitet.
    How are knowledge and information evaluated?: decision making in stage-gate processes2009Ingår i: Design has never been this cool : ICED 09, the 17th International Conference on Engineering Design ; 24 - 27 August 2009, Stanford University, Stanford, California, USA ; proceedings volume / [ed] Margareta Norell Bergendahl, Martin Grimheden, Larry Leifer, Stanford, CA, USA, 2009, Vol. 17, s. 195-206, artikel-id 342Konferensbidrag (Refereegranskat)
    Abstract [en]

    In stage-gate processes decisions are made based on the knowledge and information developed during the preceding phase. The purpose of this study is to explore the state-of-practice in industry regarding the assessment of knowledge and information at gates. The result indicates that gate reviews relate mainly to assessments of technical performance and function. Relatively little attention is given to assess the quality of the knowledge base, making it difficult to identify outdated, irrelevant and non-applicable information and knowledge. Further, tacit knowledge plays an important role in the decision-making process, as reviewers ask for the design rationale and further evidence of what has been done and why. However, evaluating such knowledge is currently a poorly understood aspect of gate reviews. It is concluded that even though the specific focus of such meetings is not on the evaluation of knowledge and information, the opportunity to work towards a better support of such activities is promising, especially since the respondents perceive the benefits that come from an increased attention to assessments of both the explicit and tacit knowledge base used in gate reviews.

  • 35.
    Johansson, Christian
    et al.
    Blekinge Tekniska Högskola, Fakulteten för teknikvetenskaper, Institutionen för maskinteknik.
    Wall, Johan
    Blekinge Tekniska Högskola, Fakulteten för teknikvetenskaper, Institutionen för maskinteknik.
    Panarotto, Massimo
    Blekinge Tekniska Högskola, Fakulteten för teknikvetenskaper, Institutionen för maskinteknik. Chalmers University of Technology.
    Maturity of models in a multi-model decision support system2017Ingår i: Proceedings of the International Conference on Engineering Design, ICED / [ed] Salustri F.,Skec S.,Maier A.M.,Kim H.,Kokkolaras M.,Oehmen J.,Fadel G.,Van der Loos M., The Design Society, 2017, Vol. 6, s. 237-246, artikel-id DS87-6Konferensbidrag (Refereegranskat)
    Abstract [en]

    To reduce uncertainty in decisions, engineers experiment with models, such as, exploring what-if scenarios, and thus increase knowledge. Still, because modelling is an idealisation of reality, there is often substantial uncertainty involved, and this decision makers less confident to lean onto models alone when making decisions. The aim of this paper is to conceptualize a design support for improving confidence and validity in models, by communicating uncertainties from modelling and simulation to relevant stakeholders. The paper reports on empirical data from a research profile workshop. The findings illustrate the importance of communicating uncertainties from models between relevant stakeholders in order to drive action. The paper then presents an approach to visualize model maturity levels as well as impact levels in relation to one or several aggregated models. With this approach, focus can move to discuss the knowledge about the knowledge that is created from modelling, and to facilitate discussions on a meta-level about the modelling and simulation. This is exemplified by a test scenario where a multi-disciplinary modelling and simulation of an asphalt roller is presented.

  • 36.
    Johansson, Pär
    et al.
    Luleå tekniska universitet.
    Johansson, Christian
    Luleå tekniska universitet.
    Perceptions of and challenges with knowledge sharing: enterprise collaboration in a virtual aeronautical enterprise2011Ingår i: Impacting society through engineering design: ICED 11 København, the 18th International Conference on Engineering Design / [ed] Steve J Culley, Ben J Hicks, Tim C McAloone, Tim J Howard, W Chen, Glasgow, UK: The Design Society, 2011, Vol. 18, s. 332-341Konferensbidrag (Refereegranskat)
    Abstract [en]

    The purpose of this paper is to investigate how knowledge is managed and shared within product development in an enterprise collaboration context in the aerospace manufacturing industry.

    This paper is based on a qualitative survey that was sent to seven companies in the European aerospace manufacturing industry, focusing on how they perceive knowledge sharing, and on common problems and challenges with knowledge sharing.

    Lack of trust and fear of losing competitive advantage is identified as a problem area. Further, information and communication technology is seen as an important enabler. In this area it is found that it is important to develop strategies for knowledge sharing in collaboration with business developers, engineering, and IT architects from various organizations in the extended enterprise.

  • 37.
    Johansson, Pär
    et al.
    Luleå tekniska universitet.
    Johansson, Christian
    Luleå tekniska universitet.
    Isaksson, Ola
    Chalmers tekniska högskola.
    Take the knowledge path to support knowledge management in product/service systems2010Ingår i: Industrial product-service systems (IPS²): proceedings of the 2nd CIRP IPS² Conference / [ed] Tomohiko Sakao, Linköping: Linköping University Electronic Press, 2010, Vol. 2Konferensbidrag (Refereegranskat)
    Abstract [en]

    Product/Service-Systems (PSS) strategies are a part of an overall movement towards a service-based society that is increasingly knowledge and information based. Knowledge sharing for cross-company innovation and development projects has been recognized as troublesome, since disparate knowledge domains must be brought together in a cohesive way to support both creativity and innovations. Stage-Gate process models are widely used in collaborative development projects but they do not suggest how to assess the degree of understanding of the produced information and the results in projects. A successful assessment of knowledge should be used for designing the next development steps in form of work methods and tools. This paper describes an approach for supporting Knowledge Management and Knowledge Sharing in the development of PSS. Finally, a concept for supporting knowledge assessment is proposed, based on designing and visualizing knowledge paths.

  • 38. Karlsson, Anna
    et al.
    Törlind, Peter
    Johansson, Christian
    Blekinge Tekniska Högskola, Sektionen för ingenjörsvetenskap, Avdelningen för maskinteknik.
    Managing Rejected Ideas from Projects— A Way to Avoid Idea Cemeteries2014Konferensbidrag (Refereegranskat)
    Abstract [en]

    An often neglected topic in idea management research is the continuity and stability of current idea management practices. This study addresses this topic by following a hand-over of ideas from a project to the line organization in a company. Moreover, idea portfolios are proposed and empirically explored as a means of managing and further developing these ideas. This particular idea-capturing scheme is believed to incorporate both codification and personalization approaches in the management of ideas. Twenty-one (21) semi-structured interviews, as well as observations, were conducted during a year, both before and during the implementation of idea portfolios at the company. Results from the study show the importance of considering the recipient of a codification effort in order for codification to become a constructive element rather than a barrier. Another finding is that different stages of maturity and levels of activity should be handled when managing ideas. Therefore, an idea portfolio is something of a hybrid between an idea bank and a register of on-going activities. Managing ideas in a transparent way was also shown to have its pros and cons. Increased transparency can both provide enhanced legitimacy for working with an idea, and increase the accountability of an idea, and can therefore be perceived as an obstacle. Finally, the shared responsibility of an idea that is the consequence of working with an idea portfolio can make the line manager something of an “accomplice”. This in turn helps in propelling the development of the idea forward.

  • 39.
    Kastensson, Åsa
    et al.
    Luleå tekniska universitet.
    Johansson, Christian
    Luleå tekniska universitet.
    Decision-making in gates: based on formal basis or gut feeling?2011Ingår i: International Journal of Technology Intelligence and Planning (IJTIP), ISSN 1740-2832, E-ISSN 1740-2840, Vol. 7, nr 2, s. 140-152Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    Manufacturing companies continuously deal with development of innovations. Many of these are cancelled on the way, in gate meetings. This paper investigates why technologies are cancelled, and on which basis managers make decisions. The paper is based on a study from the automotive industry with interviews with different stakeholders in the gates. The most common reasons for stopping projects were time, cost and technology readiness. Gut feeling is found to be an important factor when evaluating projects. This paper concludes that managers need to understand the role of intuition and query for this subjective information in addition to objective measures.

  • 40.
    Nergård, Henrik
    et al.
    Luleå tekniska universitet.
    Andersson, Petter
    Luleå tekniska universitet.
    Johansson, Christian
    Luleå tekniska universitet.
    Concept automation and decision support in a functional product development perspective2007Konferensbidrag (Refereegranskat)
  • 41. Nergård, Henrik
    et al.
    Johansson, Christian
    Larsson, Tobias
    Luleå Technical University.
    Supporting decision making with agent-based modelling and simulation2008Ingår i: Proceedings of the 10th International Design Conference, Design 2008, University of Zagreb , 2008Konferensbidrag (Refereegranskat)
    Abstract [en]

    In aeronautics today, manufacturers make extensive use of modelling and simulation capabilities with the purpose to design and evaluate specific engineering tasks and related parameters. The objective with these activities is to further reduce cost, lead-time and increase quality to strive for greater competitiveness, market share and sustainability. In recent years, aeronautics have shown interest in the concept of providing a Total Offer (TO) or selling a Functional Product (FP) [Alonso-Rasgado et al, 2004] (a.k.a. Product Service System (PSS) [Matzen et al, 2005]). The functional product, consisting of both hardware and service components developed simultaneously, provided as a function to the customers, calls for a different approach in the development process, i.e. a Functional Product Development (FPD) process [Nergård et al, 2006]. The main reason for this is the perspective of the product’s life cycle. Instead of components being sold to and owned by the customer, the hardware and service provided as FP implies that ownership and thus the risk remains with the manufacturer throughout the life cycle of the provided function. In order to reduce the risk, and make use of the possibilities for continuous product development and remanufacturing, companies are moving towards making more use of modelling and simulation capabilities not only for the design but also in order to decide whether to offer the product as a FP or as a traditional hardware product. Modelling and simulation methods such as Computer Aided Design (CAD), Finite Element Analysis (FEA), multi-body dynamics (MBS) and Computational Fluid Dynamics (CFD) are relatively mature and extensively used in most product development projects in aeronautics as design and development support tools. As these methods are maturing, they are integrated in support tools for engineers, such as Knowledge Based Engineering (KBE) applications to a larger extent. However, these support tools are still used for the design and verification of specific engineering activities. This perspective supports design on a micro (individual activities) level, while on a macro level, with a holistic perspective of the product development process (PDP), the individual PD-activates can be seen as building blocks of the total system. Although it is possible to use these Knowledge Engineering (KE) applications to model the overall macro-level PD-process there are some issues that makes them less suitable. The level of detail in KE applications is not interesting in a macro-level model where the behaviour and interaction between applications, people, and resources are more interesting. The time each iteration takes has also to be considered, due to the fact that a model that takes hours to simulate is not suitable for use in a macro-level model where the simulation is run over longer model time intervals. Agent-based modelling [Sichman et al, 1998] is an approach where agents (i.e. micro level activities) are utilised to build a system (i.e. process) bottom-up by modelling the behaviour and interaction of the agents in a certain environment. This approach seems to be suitable from a macro level perspective, as information about PD-activities can be included in the agent’s behaviour. The objective of this paper is to discuss agent based modelling and simulation as decision support in functional product development, and to show example of the approach.

  • 42.
    Nergård, Henrik
    et al.
    Luleå tekniska universitet.
    Johansson, Christian
    Luleå tekniska universitet.
    Solvang, Björn
    The Arctic University of Norway.
    Deng Solvang, Wei
    The Arctic University of Norway.
    Kärkkäinen, Jouko
    Centria.
    Pieskä, Sakari
    Centria.
    Rättyä, Jani
    Centria.
    Current status and upcoming needs in SME’s in Northern regions of Finland, Norway and Sweden: Technologies, personnel, market and ICT in the business process2012Rapport (Övrigt vetenskapligt)
    Abstract [en]

    The results written in this document comes from a questionnaire that was sent out within the Interreg IV A Nord project Digital integrated Manufacturing. Partners in the project are CENTRIA Research and Development (Lead partner), Finland, Luleå University of Technology, Sweden and Narvik University College, Norway. The project is financed and supported by the European Commission via Europeiska regionala utvecklingsfonden, Länsstyrelsen Norrbotten, Luleå University of Technology, Lapin Liito, CENTRIA Research and Development, Innovasjon Norge, Troms fylkeskommune, Narvik University College and Nordland Fylkeskommune.The projects purpose is to increase the competence and skills of employees in manufacturing Small and Medium Sized Enterprises (SME’s) so that they can improve their global competitiveness within their area of expertise. The project aims to approach this by demonstrating and using new technologies and methods throughout the entire business chain.The Projects primary target groups are the employees within the SME’s in the Interreg IV A Nord area which includes the following region in Norway, Finland and Sweden; Lapplands landskap, Mellersta Österbottens landskap, Norra Österbottens landskap, Norrbottens län, Västerbottens län (Skellefteå, Norsjö, Malå and Sorsele kommuner), Finnmark fylkeskommune, Troms fylkeskommune and Nordland fylkeskommuneThe project contained 4 work packages and this report contains the results from Work Package 1: Current status and upcoming DIM-needs amongst SME’s. One task within this work package was to conduct a questionnaire. The purpose with the questionnaire was to get fundamental knowledge and information from manufacturing companies within the Interreg IV A Nord region regarding the following topics:• General company information and current status• Products and Design and production process• Information and Communication Technologies• Business partner relationships• CompetitionSome conclusions from the questionnaire indicate that companies that answered the questionnaire want to maintain their business and make it grow. Regarding DIM technologies some companies have implemented certain methods, tools, machines to a larger extent than others. The companies state that they are more interested in employing personnel with technical skills (both professional and academic degrees) than personnel with economy skills. Robotics was seen as one area of improvement.

  • 43. Parida, Vinit
    et al.
    Johansson, Christian
    Luleå University of Technology.
    Larsson, Tobias
    Luleå University of Technology.
    Implementation of open innovation practices in Swedish manufacturing industry2009Konferensbidrag (Refereegranskat)
    Abstract [en]

    The notion of open innovation has quickly gained interest of both practitioners and researches. However, there is a lack on studies on this research topic. Thus, the main purpose of the study is to get a deeper understanding of how can large firms can implement open innovation practices. This purpose will be achieved by first, understanding the current innovation process and second, focus on critical aspects such as, partners, capabilities, and role of SMEs which can be important for implementing open innovation practices. The study is based on qualitative data from two companies from Swedish manufacturing industry. The results show that both companies don’t fully practice open innovation approach. Moreover, partnering with customers and universities are highly preferred compared to having suppliers involved in the development process. The ability to absorb external knowledge and gain from inter-firm relationships were vital for effective open innovation practices. Finally, role of SMEs in the open innovation practices large firms was not clearly visible.

  • 44.
    Ruvald, Ryan
    et al.
    Blekinge Tekniska Högskola, Fakulteten för teknikvetenskaper, Institutionen för maskinteknik.
    Bertoni, Alessandro
    Blekinge Tekniska Högskola, Fakulteten för teknikvetenskaper, Institutionen för maskinteknik.
    Johansson, Christian
    Blekinge Tekniska Högskola, Fakulteten för teknikvetenskaper, Institutionen för maskinteknik.
    A role for physical prototyping in Product-Service System design: Case study in construction equipment2019Ingår i: Proceedia CIRP / [ed] George Q Huang, Ting Qu, Matthias Thürer, Suxiu Xu, Mohamed Khalgui, Elsevier, 2019, Vol. 83, s. 358-362Konferensbidrag (Refereegranskat)
    Abstract [en]

    Using a case study methodology to exploring an ambitious experimental combination of a construction equipment manufacturer’s products tailored to provide exponential increases in efficiency and reductions in CO2. The products and system represent a relevant example of new technology being the foundation upon which a functional offering IPSS can be designed. The researcher constructed a scaled down functional experiential prototype reflecting a full scale experimental all electric quarry site in under operation outside of Goteborg, Sweden. The prototype site represented the primary equipment and system functionality, to act as a boundary object around which relevant stakeholders both internal and external could share the vision of an electric autonomous future. This was confirmed via observation at an event where the scale site was used for this purpose and verified with follow up interviews to dig deeper into the impact this tangible representation could have in increasing the perceived viability of the full scale technology’s potential on display thousands of miles from the event.

  • 45.
    Ruvald, Ryan
    et al.
    Blekinge Tekniska Högskola, Fakulteten för teknikvetenskaper, Institutionen för maskinteknik.
    Frank, Martin
    Volvo Construction Equipment, SWE.
    Johansson, Christian
    Blekinge Tekniska Högskola, Fakulteten för teknikvetenskaper, Institutionen för maskinteknik.
    Larsson, Tobias
    Blekinge Tekniska Högskola, Fakulteten för teknikvetenskaper, Institutionen för maskinteknik.
    Data Mining through Early Experience Prototyping: A step towards Data Driven Product Service System Design2018Ingår i: IFAC PAPERSONLINE, Elsevier, 2018, Vol. 51, nr 11, s. 1095-1100, artikel-id 11Konferensbidrag (Refereegranskat)
    Abstract [en]

    The construction industry is ripe for disruption through innovative solutions that provide added productivity. Equipment manufacturers are attempting to disrupt their industry with investments in autonomy, electrification and product-service system business models. Designing solutions that will operate in completely new systems or modify an existing complex system require new approaches to address the uncertainty of system impacts. An iterative approach can help tackle ambiguity through cyclical validation of design decisions. Data mining in each cycle adds a quantitative dimension to the rationale of decision making, but data is sparse and difficult to collect in parallel with design of theoretical product-service systems operating in future scenarios. This can be combated using experiential prototyping techniques to design flexible infrastructure that supports contextualized data gathering in a variety of focused design sprints using Design, Build and Test approach. The intricacy of designing innovative solutions to increase productivity in the construction industry can be untangled by framing aspects of the problem in small sprints and testing them in a contextualized setting built to generate functional data to drive design.

  • 46.
    Tatipala, Sravan
    et al.
    Blekinge Tekniska Högskola, Fakulteten för teknikvetenskaper, Institutionen för maskinteknik.
    Pilthammar, Johan
    Blekinge Tekniska Högskola, Fakulteten för teknikvetenskaper, Institutionen för maskinteknik. Volvo Cars.
    Sigvant, Mats
    Blekinge Tekniska Högskola, Fakulteten för teknikvetenskaper, Institutionen för maskinteknik. Volvo Cars.
    Wall, Johan
    Blekinge Tekniska Högskola, Fakulteten för teknikvetenskaper, Institutionen för maskinteknik.
    Johansson, Christian
    Blekinge Tekniska Högskola, Fakulteten för teknikvetenskaper, Institutionen för maskinteknik.
    Introductory study of sheet metal forming simulations to evaluate process robustness2018Ingår i: IOP Conference Series: Materials Science and Engineering, Institute of Physics Publishing (IOPP), 2018, Vol. 418, artikel-id 012111Konferensbidrag (Refereegranskat)
    Abstract [en]

    The ability to control quality of a part is gaining increased importance with desires to achieve zero-defect manufacturing. Two significant factors affecting process robustness in production of deep drawn automotive parts are variations in material properties of the blanks and the tribology conditions of the process. It is imperative to understand how these factors influence the forming process in order to control the quality of a formed part. This paper presents a preliminary investigation on the front door inner of a Volvo XC90 using a simulation-based approach. The simulations investigate how variation of material and lubrication properties affect the numerical predictions of part quality. To create a realistic lubrication profile in simulations, data of pre-lube lubrication amount, which is measured from the blanking line, is used. Friction models with localized friction conditions are created using TriboForm and is incorporated into the simulations. Finally, the Autoform-Sigmaplus software module is used to create and vary parameters related to material and lubrication properties within a user defined range. On comparing and analysing the numerical investigation results, it is observed that a correlation between the lubrication profile and the predicted part quality exists. However, variation in material properties seems to have a low influence on the predicted part quality. The paper concludes by discussing the relevance of such investigations for improved part quality and proposing suggestions for future work.

  • 47.
    Tatipala, Sravan
    et al.
    Blekinge Tekniska Högskola, Fakulteten för teknikvetenskaper, Institutionen för maskinteknik.
    Suddapalli, Nikshep Reddy
    Blekinge Tekniska Högskola, Fakulteten för teknikvetenskaper, Institutionen för maskinteknik.
    Pilthammar, Johan
    Blekinge Tekniska Högskola, Fakulteten för teknikvetenskaper, Institutionen för maskinteknik.
    Sigvant, Mats
    Blekinge Tekniska Högskola, Fakulteten för teknikvetenskaper, Institutionen för maskinteknik.
    Johansson, Christian
    Blekinge Tekniska Högskola, Fakulteten för teknikvetenskaper, Institutionen för maskinteknik.
    Simulation-Driven Design Approach for Design and Optimization of Blankholder2017Ingår i: Journal of Physics: Conference Series (JPCS), Institute of Physics Publishing (IOPP), 2017, Vol. 896, artikel-id 012045Konferensbidrag (Refereegranskat)
    Abstract [en]

    Reliable design of stamping dies is desired for efficient and safe production. The design of stamping dies are today mostly based on casting feasibility, although it can also be based on criteria for fatigue, stiffness, safety, economy. Current work presents an approach that is built on Simulation Driven Design, enabling Design Optimization to address this issue. A structural finite element model of a stamping die, used to produce doors for Volvo V70/S80 car models, is studied. This die had developed cracks during its usage. To understand the behaviour of stress distribution in the stamping die, structural analysis of the die is conducted and critical regions with high stresses are identified. The results from structural FE-models are compared with analytical calculations pertaining to fatigue properties of the material. To arrive at an optimum design with increased stiffness and lifetime, topology and free-shape optimization are performed. In the optimization routine, identified critical regions of the die are set as design variables. Other optimization variables are set to maintain manufacturability of the resultant stamping die. Thereafter a CAD model is built based on geometrical results from topology and free-shape optimizations. Then the CAD model is subjected to structural analysis to visualize the new stress distribution. This process is iterated until a satisfactory result is obtained. The final results show reduction in stress levels by 70% with a more homogeneous distribution. Even though mass of the die is increased by 17 %, overall, a stiffer die with better lifetime is obtained. Finally, by reflecting on the entire process, a coordinated approach to handle such situations efficiently is presented.

  • 48.
    Tatipala, Sravan
    et al.
    Blekinge Tekniska Högskola, Fakulteten för teknikvetenskaper, Institutionen för maskinteknik.
    Wall, Johan
    Johansson, Christian
    Sigvant, Mats
    Blekinge Tekniska Högskola, Fakulteten för teknikvetenskaper, Institutionen för maskinteknik. Volvo Cars.
    Data-driven modelling in the era of Industry 4.0: A case study of friction modelling in sheet metal forming simulations2018Ingår i: Journal of Physics: Conference Series 1063 (2018) 012135, Institute of Physics Publishing (IOPP), 2018, Vol. 1063Konferensbidrag (Refereegranskat)
    Abstract [en]

    With growing demands on quality of produced parts, concepts like zero-defect manufacturing are gaining increasing importance. As one of the means to achieve this, industries strive to attain the ability to control product/process parameters through connected manufacturing technologies and model-based control systems that utilize process/machine data for predicting optimum system conditions without human intervention. Present work demonstrates an automated approach to process in-line measured data of tribology conditions and incorporate it within sheet metal forming (SMF) simulations to enhance the prediction accuracy while reducing overall modelling effort. The automated procedure is realized using a client-server model with an in-house developed application as the server and numerical computing platform/commercial CAD software as clients. Firstly, the server launches the computing platform for processing measured data from the production line. Based on this analysis, the client then executes CAD software for modifying the blank model thereby enabling assignment of localized friction conditions. Finally, the modified blank geometry and accompanied friction values is incorporated into SMF simulations. The presented procedure reduces time required for setting up SMF simulations as well as improves the prediction accuracy. In addition to outlining suggestions for future work, paper concludes by discussing the importance of the presented procedure and its significance in the context of Industry 4.0.

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