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  • 1.
    Ali, Nauman bin
    et al.
    Blekinge Tekniska Högskola, Fakulteten för datavetenskaper, Institutionen för programvaruteknik.
    Engström, Emelie
    Lund University, SWE.
    Taromirad, Masoumeh
    Halmstad University, SWE.
    Mousavi, Muhammad Raza
    Halmstad University, SWE.
    Minhas, Nasir Mehmood
    Blekinge Tekniska Högskola, Fakulteten för datavetenskaper, Institutionen för programvaruteknik.
    Helgesson, Daniel
    Lund University, SWE.
    Kunze, Sebastian
    Halmstad University, SWE.
    Varshosaz, Mahsa
    Halmstad University, SWE.
    On the search for industry-relevant regression testing research2019Inngår i: Empirical Software Engineering, ISSN 1382-3256, E-ISSN 1573-7616, Vol. 24, nr 4, s. 2020-2055Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    Regression testing is a means to assure that a change in the software, or

    its execution environment, does not introduce new defects. It involves the expensive

    undertaking of rerunning test cases. Several techniques have been proposed

    to reduce the number of test cases to execute in regression testing, however, there

    is no research on how to assess industrial relevance and applicability of such techniques.

    We conducted a systematic literature review with the following two goals:

    rstly, to enable researchers to design and present regression testing research with

    a focus on industrial relevance and applicability and secondly, to facilitate the industrial

    adoption of such research by addressing the attributes of concern from the

    practitioners' perspective. Using a reference-based search approach, we identied

    1068 papers on regression testing. We then reduced the scope to only include papers

    with explicit discussions about relevance and applicability (i.e. mainly studies

    involving industrial stakeholders). Uniquely in this literature review, practitioners

    were consulted at several steps to increase the likelihood of achieving our aim of

    identifying factors important for relevance and applicability. We have summarised

    the results of these consultations and an analysis of the literature in three taxonomies,

    which capture aspects of industrial-relevance regarding the regression

    testing techniques. Based on these taxonomies, we mapped 38 papers reporting

    the evaluation of 26 regression testing techniques in industrial settings.

    Fulltekst (pdf)
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  • 2.
    Britto, Ricardo
    et al.
    Blekinge Tekniska Högskola, Fakulteten för datavetenskaper, Institutionen för programvaruteknik.
    Usman, Muhammad
    Blekinge Tekniska Högskola, Fakulteten för datavetenskaper, Institutionen för programvaruteknik.
    Minhas, Nasir Mehmood
    Blekinge Tekniska Högskola, Fakulteten för datavetenskaper, Institutionen för programvaruteknik.
    A quasi-experiment to evaluate the impact of mental fatigue on study selection process2017Inngår i: ACM International Conference Proceeding Series, Association for Computing Machinery , 2017, s. 264-269Konferansepaper (Fagfellevurdert)
    Abstract [en]

    Context: Existing empirical evidence indicates that loss of alertness associated with mental fatigue is highly correlated with fluctuations in the performance of people carrying out auditory tasks. In software engineering research, mental fatigue may affect the results of study selection (an auditory task) when conducting secondary studies such as systematic literature reviews or systematic mapping studies. However, to date there is no empirical study that reports an in-depth investigation about the relationship between mental fatigue and researchers' selection decisions during study selection process. Objective: The main objective of this paper is to report the design and preliminary results of an investigation about the impact of mental fatigue on the study selection process of secondary studies. Method: We designed and piloted a quasi-experiment. Results: The preliminary results do not indicate that mental fatigue negatively impacts the correctness of selection decision and confidence. However, it is important to note that the preliminary results are only based on six subjects. Conclusion: This paper brings awareness about the role of mental fatigue in the conduction of secondary studies. Although the preliminary results do not indicate any meaningful relationship, we believe that it is worthwhile to continue the research, by adding more subjects, and also revising the design of the reported quasi-experiment. © 2017 ACM.

  • 3.
    Minhas, Nasir Mehmood
    Blekinge Tekniska Högskola, Fakulteten för datavetenskaper, Institutionen för programvaruteknik.
    Authorship ethics: An overview of research on the state of practice2021Inngår i: Proceedings - 2021 IEEE/ACM 2nd International Workshop on Ethics in Software Engineering Research and Practice, SEthics 2021, Institute of Electrical and Electronics Engineers Inc. , 2021, s. 31-38, artikkel-id 9474818Konferansepaper (Fagfellevurdert)
    Abstract [en]

    Authorship ethics is a central topic of discussion in research ethics fora. There are various guidelines for authorship (i.e., naming and order). It is not easy to decide the authorship in the presence of varying authorship guidelines. This paper gives an overview of research on authorship practices and issues. It presents a review of 16 empirical research papers published between 2014 - 2020. The objective is to learn how various research disciplines handle authorship. What are the authorship practices in various research disciplines, and what are the issues associated with these practices © 2021 IEEE.

  • 4.
    Minhas, Nasir Mehmood
    Blekinge Tekniska Högskola, Fakulteten för datavetenskaper, Institutionen för programvaruteknik.
    Regression Testing Challenges and Solutions: An Industry-Academia Perspective2019Licentiatavhandling, med artikler (Annet vitenskapelig)
    Abstract [en]

    Background: Software quality assurance (QA) is an essential activity in the software development lifecycle. Among the different QA activities, regression testing is a challenging task for large-scale software development. Regression testing is a well-researched area, and a large number of techniques have been proposed to fulfill the needs of industry. Despite the extensive research, the adoption of proposed regression testing techniques in the industry is limited. Studies show that there is a visible gap between research and practice.

    Objective: This work aims at reducing the gap between industry and academia in regression testing. To fulfill this aim we have the following objectives:

    1) Understanding the practitioners' goals regarding regression testing.

    2) Understanding the current state of regression testing practice and challenges in the industry.

    3) Investigating the testing research applicable in an industrial context.

    Method: We conducted multiple studies using different methods.

    To explore the industry perspective on regression testing we used focus group and interview-based studies. To explore solutions from the literature, we used the systematic literature review and systematic mapping study.

    Results: This thesis presents the practitioners' specific regression testing goals. The identified goals are confidence, controlled fault slippage, effectiveness, efficiency, and customer satisfaction. The challenges identified in the thesis are of two categories, 1) management related challenges and 2) technical challenges. Technical challenges relate to test suite maintenance, test case selection, test case prioritization, evaluation of regression testing.

    We have mapped 26 empirically evaluated regression testing techniques to the context, effect, and information taxonomies, and provided a guide to the practitioners regarding the adoption of the techniques in an industrial setting. We have also classified 56 model-based test case generation techniques regarding their strengths/limitations, input/intermediate models used, and relevance to the industrial context.

    Conclusions: The challenges identified in this study are not new for research and practice. There could be two reasons regarding the presence of recurring challenges: 1) regression testing techniques proposed in the literature do not fit the companies’ context, 2) or, companies are not aware of the availability of the techniques that could be suitable for their context. To support the adoption of existing research on regression testing in the industry, we have presented three taxonomies. These taxonomies, allow the characterization of regression testing techniques and enable to determine which of these techniques might be suitable in a given context. Furthermore, the identification of information needs for these techniques would be helpful to learn the implications regarding the cost of adoption. Regarding the support in test case generation, we conclude that current research on interaction model-based test case generation techniques did not illustrate the use of rigorous methodology, and currently, model-based test case generation techniques have low relevance for the industrial problems.

    Fulltekst (pdf)
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  • 5.
    Minhas, Nasir Mehmood
    Blekinge Tekniska Högskola, Fakulteten för datavetenskaper, Institutionen för programvaruteknik.
    Understanding and improving regression testing practice2022Doktoravhandling, med artikler (Annet vitenskapelig)
    Abstract [en]

    Background

    Regression testing is a complex and challenging activity and consumes a significant portion of software maintenance costs. Researchers are proposing various techniques to deal with the cost and complexity of regression testing. Yet, practitioners face various challenges when planning and executing regression testing. One of the main reasons is the disparity between research and practice perspectives on the goals and challenges of regression testing. In addition, it is difficult for practitioners to find techniques relevant to their context, needs, and goals because most proposed techniques lack contextual information.

    Objective

    This work aims to understand the challenges to regression testing practice and find ways to improve it. To fulfil this aim, we have the following objectives:

    1) understanding the current state of regression testing practice, goals, and challenges,

    2) finding ways to utilize regression testing research in practice, and

    3) providing support in structuring and improving regression testing practice. 

    Method

    We have utilized various research methods, including literature reviews, workshops, focus groups, case studies, surveys, and experiments, to conduct the studies for this thesis.

    Results

    Research and practice stress different goals, and both follow their priorities. Researchers propose new regression testing techniques to increase the test suite's fault detection rate and maximise coverage. The practitioners consider test suite maintenance, controlled fault slippage, and confidence their priority goals. The practitioners rely on expert judgment instead of a well-defined regression testing process. They face various challenges in regression testing, such as time to test, test suit maintenance, lack of communication, lack of strategy, lack of assessment, and issues in test case selection and prioritization. 

    We have proposed a GQM model representing research and practice perspectives on regression testing goals. The proposed model can help reduce disparities in research and practice perspectives and cope with the lack of assessment. 

    We have created regression testing taxonomies to guide practitioners in finding techniques suitable to their product context, goals, and needs.  Further, based on the experiences of replicating a regression testing technique, we have provided guidelines for future replications and adoption of regression testing techniques.

    Finally, we have designed regression testing checklists to support practitioners in decision-making while planning and performing regression testing. Practitioners who evaluated the checklists reported that the checklists covered essential aspects of regression testing and were useful and customizable to their context.

    Conclusions

    The thesis points out the gap in research and practice perspectives of regression testing. The regression testing challenges identified in this thesis are the evidence that either research does not consider these challenges or practitioners are unaware of how to replicate the regression testing research into their context. The GQM model presented in this thesis is a step toward reducing the research and practice gap in regression testing. Furthermore, the taxonomies and the replication experiment provide a way forward to adopting regression testing research. Finally, the checklists proposed in this thesis could help improve communication and regression test strategy. Moreover, the checklists will provide a basis for structuring and improving regression testing practice.

    Fulltekst (pdf)
    fulltext
  • 6.
    Minhas, Nasir Mehmood
    et al.
    Blekinge Tekniska Högskola, Fakulteten för datavetenskaper, Institutionen för programvaruteknik.
    Bilal, Ahmad
    Mälardalen University.
    Nasir, Nayla
    Blekinge Tekniska Högskola, Fakulteten för datavetenskaper, Institutionen för programvaruteknik.
    A framework to support requirements validation in global software development2023Inngår i: Proceedings - 2023 International Conference on Frontiers of Information Technology, FIT 2023, Institute of Electrical and Electronics Engineers (IEEE), 2023, s. 244-249Konferansepaper (Fagfellevurdert)
    Abstract [en]

    Requirements validation ensures that the defined requirements conform to the description of the system and are consistent and complete. It is a complex activity that becomes more complicated for global software development (GSD). This study presents the issues associated with requirements validation in GSD and proposes a solution (RVGSD) to overcome these issues. We conducted a literature review and developed a prototype tool to implement RVGSD. The evaluation results show that RVGSD is easy to adopt in the industry and can potentially overcome various issues in the GSD context. Practitioners were satisfied with our framework in all aspects, including validation of requirements, fixing GSD issues, and overall performance. © 2023 IEEE.

    Fulltekst (pdf)
    fulltext
  • 7.
    Minhas, Nasir Mehmood
    et al.
    Blekinge Tekniska Högskola, Fakulteten för datavetenskaper, Institutionen för programvaruteknik.
    Börstler, Jürgen
    Blekinge Tekniska Högskola, Fakulteten för datavetenskaper, Institutionen för programvaruteknik.
    Petersen, Kai
    Blekinge Tekniska Högskola, Fakulteten för datavetenskaper, Institutionen för programvaruteknik.
    Checklists to support decision-making in regression testing2023Inngår i: Journal of Systems and Software, ISSN 0164-1212, E-ISSN 1873-1228, Vol. 202, artikkel-id 111697Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    Context: Practitioners working in large-scale software development face many challenges in regression testing activities. One of the reasons is the lack of a structured regression testing process. In this regard, checklists can help practitioners keep track of essential regression testing activities and add structure to the regression testing process to a certain extent. Objective: This study aims to introduce regression testing checklists so test managers/teams can use them: (1) to assess whether test teams/members are ready to begin regression testing, and (2) to keep track of essential regression testing activities while planning and executing regression tests. Method: We used interviews, workshops, and questionnaires to design, evolve, and evaluate regression testing checklists. In total, 25 practitioners from 12 companies participated in creating the checklist. Twenty-three of them participated in checklists evolution and evaluation. Results: We identified activities practitioners consider significant while planning, performing, and analyzing regression testing. We designed regression testing checklists based on these activities to help practitioners make informed decisions during regression testing. With the help of practitioners, we evolved these checklists into two iterations. Finally, the practitioners provided feedback on the proposed checklists. All respondents think the proposed checklists are useful and customizable for their environments, and 80% think checklists cover aspects essential for regression testing. Conclusion: The proposed regression testing checklists can be useful for test managers to assess their team/team members’ readiness and decide when to start and stop regression testing. The checklists can be used to record the steps required while planning and executing regression testing. Further, these checklists can provide a basis for structuring the regression testing process in varying contexts. © 2023 The Author(s)

    Fulltekst (pdf)
    fulltext
  • 8.
    Minhas, Nasir Mehmood
    et al.
    Blekinge Tekniska Högskola, Fakulteten för datavetenskaper, Institutionen för programvaruteknik.
    Irshad, Mohsin
    Ericsson Sweden AB.
    Petersen, Kai
    Blekinge Tekniska Högskola, Fakulteten för datavetenskaper, Institutionen för programvaruteknik.
    Börstler, Jürgen
    Blekinge Tekniska Högskola, Fakulteten för datavetenskaper, Institutionen för programvaruteknik.
    Lessons learned from replicating a study on information-retrieval based test case prioritization2023Inngår i: Software quality journal, ISSN 0963-9314, E-ISSN 1573-1367, Vol. 31, nr 4, s. 1527-1559Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    Replication studies help solidify and extend knowledge by evaluating previous studies’ findings. Software engineering literature showed that too few replications are conducted focusing on software artifacts without the involvement of humans. This study aims to replicate an artifact-based study on software testing to address the gap related to replications. In this investigation, we focus on (i) providing a step-by-step guide of the replication, reflecting on challenges when replicating artifact-based testing research and (ii) evaluating the replicated study concerning the validity and robustness of the findings. We replicate a test case prioritization technique proposed by Kwon et al. We replicated the original study using six software programs, four from the original study and two additional software programs. We automated the steps of the original study using a Jupyter notebook to support future replications. Various general factors facilitating replications are identified, such as (1) the importance of documentation; (2) the need for assistance from the original authors; (3) issues in the maintenance of open-source repositories (e.g., concerning needed software dependencies, versioning); and (4) availability of scripts. We also noted observations specific to the study and its context, such as insights from using different mutation tools and strategies for mutant generation. We conclude that the study by Kwon et al. is partially replicable for small software programs and could be automated to facilitate software practitioners, given the availability of required information. However, it is hard to implement the technique for large software programs with the current guidelines. Based on lessons learned, we suggest that the authors of original studies need to publish their data and experimental setup to support the external replications. © 2023, The Author(s).

    Fulltekst (pdf)
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  • 9.
    Minhas, Nasir Mehmood
    et al.
    Blekinge Tekniska Högskola, Fakulteten för datavetenskaper, Institutionen för programvaruteknik.
    Koppula, Thejendar Reddy
    Blekinge Tekniska Högskola. student.
    Petersen, Kai
    Blekinge Tekniska Högskola, Fakulteten för datavetenskaper, Institutionen för programvaruteknik.
    Börstler, Jürgen
    Blekinge Tekniska Högskola, Fakulteten för datavetenskaper, Institutionen för programvaruteknik.
    Using goal-question-metric to Compare Research and Practice Perspectives on Regression Testing2023Inngår i: Journal of Software: Evolution and Process, ISSN 2047-7473, E-ISSN 2047-7481, Vol. 35, nr 2, artikkel-id e2506Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    Regression testing is challenging because of its complexity and the amount of effort and time it requires, especially in large-scale environments with continuous integration and delivery. Regression test selection and prioritization techniques have been proposed in the literature to address the regression testing challenges, but adoption rates of these techniques in industry are not encouraging. One of the possible reasons could be the disparity in the regression testing goals in industry and literature. 

    This work compares the research perspective to industry practice on regression testing goals, corresponding information needs, and metrics required to evaluate these goals. We have conducted a literature review of 44 research papers and a survey with 56 testing practitioners. The survey comprises 11 interviews and 45 responses to an online questionnaire. 

    We identified that industry and research accentuate different regression testing goals. For instance, the literature emphasizes increasing the fault detection rates of test suites and early identification of critical faults. In contrast, the practitioners' focus is on test suite maintenance, controlled fault slippage, and awareness of changes. Similarly, the literature suggests maintaining information needs from test case execution histories to evaluate regression testing techniques based on various metrics, whereas, at large, the practitioners do not use the metrics suggested in the literature. 

    To bridge the research and practice gap, based on the literature and survey findings, we have created a goal-question-metric (GQM) model that maps the regression testing goals, associated information needs, and metrics from both perspectives. The GQM model can guide researchers in proposing new techniques closer to industry contexts. Practitioners can benefit from information needs and metrics presented in the literature and can use GQM as a tool to follow their regression testing goals. 

    Fulltekst (pdf)
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  • 10.
    Minhas, Nasir Mehmood
    et al.
    Blekinge Tekniska Högskola, Fakulteten för datavetenskaper, Institutionen för programvaruteknik.
    Majeed, Asif
    UIIT, PMAS Arid Agriculture University, Rawalpindi, PAK.
    Börstler, Jürgen
    Blekinge Tekniska Högskola, Fakulteten för datavetenskaper, Institutionen för programvaruteknik.
    Gorschek, Tony
    Blekinge Tekniska Högskola, Fakulteten för datavetenskaper, Institutionen för programvaruteknik.
    SWVP-A Requirements Prioritization Technique for Global Software Development2019Inngår i: EUROMICRO Conference Proceedings / [ed] Staron, M; Capilla, R; Skavhaug, A, Institute of Electrical and Electronics Engineers Inc. , 2019, s. 1-9Konferansepaper (Fagfellevurdert)
    Abstract [en]

    Requirements prioritization plays a vital role in software release planning, and the process requires good interaction between stakeholders. Requirement prioritization process is challenging in global software development (GSD) context, where communication and coordination are core bottlenecks. Based on the issues found in the literature and industry survey, this paper proposes a requirements prioritization technique for GSD settings based on stakeholders' weight, vote, and priority (SWVP). The technique has two phases: (1) a calculation of stakeholders' profile weights and setting up communication parameters and (2) a voting process supporting the actual prioritization, based on the weights from phase (1). The proposed technique was applied to three industrial projects. The feedback of the practitioners after using SWVP was encouraging, and the feedback results indicate that SWVP could be a practical solution for requirements prioritization in GSD contexts. © 2019 IEEE.

  • 11.
    Minhas, Nasir Mehmood
    et al.
    Blekinge Tekniska Högskola, Fakulteten för datavetenskaper, Institutionen för programvaruteknik.
    Masood, Sohaib
    UIIT PMAS Arid Agriculture University, PAK.
    Petersen, Kai
    Blekinge Tekniska Högskola, Fakulteten för datavetenskaper, Institutionen för programvaruteknik.
    Nadeem, Aamer
    Capital University of Science and Technology, PAK.
    A Systematic Mapping of Test Case Generation Techniques Using UML Interaction Diagrams2020Inngår i: Journal of Software: Evolution and Process, ISSN 2047-7473, E-ISSN 2047-7481, Vol. 32, nr 6, artikkel-id e2235Artikkel, forskningsoversikt (Fagfellevurdert)
    Abstract [en]

    Testing plays a vital role for assuring software quality. Among the activities performed during testing process, test cases generation is a challenging and labor intensive task. Test case generation techniques based on UML models are getting the attention of researchers and practitioners. This study provides a systematic mapping of test case generation techniques based on interaction diagrams. The study compares the test case generation techniques, regarding their capabilities and limitations, and it also assesses the reporting quality of the primary studies. It has been revealed that UML interaction diagrams based techniques are mainly used for integration testing. The majority of the techniques are using sequence diagrams as input models, while some are using collaboration. A notable number of techniques are using interaction diagram along with some other UML diagram for test case generation. These techniques are mainly focusing on interaction, scenario, operational, concurrency, synchronization and deadlock related faults.

    From the results of this study, we can conclude that the studies presenting test case generation techniques using UML interaction diagrams failed to illustrate the use of rigorous methodology, and these techniques did not demonstrate the empirical evaluation in an industrial context. Our study revealed the need for tool support to facilitate the transfer of solutions to industry.

    Fulltekst (pdf)
    fulltext
  • 12.
    Minhas, Nasir Mehmood
    et al.
    Blekinge Tekniska Högskola, Fakulteten för datavetenskaper, Institutionen för programvaruteknik.
    Petersen, Kai
    Blekinge Tekniska Högskola, Fakulteten för datavetenskaper, Institutionen för programvaruteknik.
    Ali, Nauman bin
    Blekinge Tekniska Högskola, Fakulteten för datavetenskaper, Institutionen för programvaruteknik.
    Wnuk, Krzysztof
    Blekinge Tekniska Högskola, Fakulteten för datavetenskaper, Institutionen för programvaruteknik.
    Regression testing goals: View of practitioners and researchers2017Inngår i: 24th Asia-Pacific Software Engineering Conference Workshops (APSECW), IEEE, 2017, s. 25-32Konferansepaper (Fagfellevurdert)
    Abstract [en]

    Context: Regression testing is a well-researched area. However, the majority regression testing techniques proposed by the researchers are not getting the attention of the practitioners. Communication gaps between industry and academia and disparity in the regression testing goals are the main reasons. Close collaboration can help in bridging the communication gaps and resolving the disparities.Objective: The study aims at exploring the views of academics and practitioners about the goals of regression testing. The purpose is to investigate the commonalities and differences in their viewpoints and defining some common goals for the success of regression testing.Method: We conducted a focus group study, with 7 testing experts from industry and academia. 4 testing practitioners from 2companies and 3 researchers from 2 universities participated in the study. We followed GQM approach, to elicit the regression testing goals, information needs, and measures.Results: 43 regression testing goals were identified by the participants, which were reduced to 10 on the basis of similarity among the identified goals. Later during the priority assignment process, 5 goals were discarded, because the priority assigned to these goals was very low. Participants identified 47 information needs/questions required to evaluate the success of regression testing with reference to goal G5 (confidence). Which were then reduced to10 on the basis of similarity. Finally, we identified measures to gauge those information needs/questions, which were corresponding to the goal (G5).Conclusions: We observed that participation level of practitioners and researchers during the elicitation of goals and questions was same. We found a certain level of agreement between the participants regarding the regression testing definitions and goals.But there was some level of disagreement regarding the priorities of the goals. We also identified the need to implement a regression testing evaluation framework in the participating companies.

    Fulltekst (pdf)
    fulltext
  • 13.
    Minhas, Nasir Mehmood
    et al.
    Blekinge Tekniska Högskola, Fakulteten för datavetenskaper, Institutionen för programvaruteknik.
    Petersen, Kai
    Blekinge Tekniska Högskola, Fakulteten för datavetenskaper, Institutionen för programvaruteknik.
    Börstler, Jürgen
    Blekinge Tekniska Högskola, Fakulteten för datavetenskaper, Institutionen för programvaruteknik.
    Wnuk, Krzysztof
    Blekinge Tekniska Högskola, Fakulteten för datavetenskaper, Institutionen för programvaruteknik.
    Regression testing for large-scale embedded software development: Exploring the state of practice2020Inngår i: Information and Software Technology, ISSN 0950-5849, E-ISSN 1873-6025, Vol. 120, artikkel-id UNSP 106254Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    Context: A majority of the regression testing techniques proposed by the research have not been adopted in industry. To increase adoption rates, we need to better understand the practitioners' perspectives on regression testing.

    Objective: This study aims at exploring the regression testing state of practice in the large-scale embedded software development. The study has two objectives, 1) to highlight the potential challenges in practice, and 2) to identify the industry-relevant research areas regarding regression testing.

    Method: We conducted a qualitative study in two large-scale embedded software development companies, where we carried out semi-structured interviews with representatives from five software testing teams. We did conduct the detailed review of the process documentation of the companies to complement/validate the findings of the interviews.

    Results: Mostly, the practitioners run regression testing with a selected scope, the selection of scope depends upon the size, complexity, and location of the change. Test cases are prioritized on the basis of risk and critical functionality. The practitioners rely on their knowledge and experience for the decision making regarding selection and prioritization of test cases.The companies are using both automated and manual regression testing, and mainly they rely on in-house developed tools for test automation. The challenges identified in the companies are: time to test, information management, test suite maintenance, lack of communication, test selection/prioritization, lack of assessment, etc. The proposed improvements are in line with the identified challenges. Regression testing goals identified in this study are customer satisfaction, critical defect detection, confidence, effectiveness, efficiency, and controlled slip through of faults.

    Conclusions: Considering the current state of practice and identified challenges we conclude that there is a need to reconsider the regression test strategy in the companies. Researchers need to analyze the industry perspective while proposing new regression testing techniques. The industry-academia collaboration projects would be a good platform in this regard.

    Fulltekst (pdf)
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  • 14.
    Nasir, Nayla
    et al.
    Universiti Teknologi Malaysia, MYS.
    Minhas, Nasir Mehmood
    Blekinge Tekniska Högskola, Fakulteten för datavetenskaper, Institutionen för programvaruteknik.
    Implementing Value Stream Mapping in a Scrum-based project: An Experience Report2018Inngår i: CEUR Workshop Proceedings, CEUR-WS , 2018, Vol. 2273, s. 38-43Konferansepaper (Fagfellevurdert)
    Abstract [en]

    —The value stream mapping is one of the lean practices, that helps to visualize the whole process and identifies any bottlenecks affecting the flow. Proper management of the value stream can significantly contribute towards waste elimination by categorizing process activities to be either value adding or non value-adding. Lean development focuses on the value through the elimination of waste. Adding value through embracing change and customer satisfaction are also the benefits of Scrum. This study reports our experience regarding the implementation of VSM with Scrum. We followed the action research method, with an objective to see if VSM can contribute to the identification and reduction of wastes in a Scrum-based project. We identified a noticeable amount of waste even with strict compliance to the Scrum practices. On the basis of identified waste, their root causes, and possible mitigation strategy we have proposed a future state map, that could help improve the productivity of the process. The results of our study are encouraging, and we suggest that adoption of VSM with Scrum could add more value to the Scrum-based projects. Copyright © 2018 for this paper by its authors.

  • 15.
    Riaz, Farhad Muhammad
    et al.
    Sir Syed Science College, PAK.
    Minhas, Nasir Mehmood
    Blekinge Tekniska Högskola, Fakulteten för datavetenskaper, Institutionen för programvaruteknik.
    Bibi, Sarfraz
    University Institute of Information Technology, PAK.
    Ahmed, Waqas
    Foundation University Rawalpindi, PAK.
    Classification of social media users based on disagreement and stance analysis2020Inngår i: Communications in Computer and Information Science / [ed] Bajwa I.S.,Sibalija T.,Jawawi D.N.A., Springer, 2020, Vol. 1198, s. 309-321Konferansepaper (Fagfellevurdert)
    Abstract [en]

    Analyzing conversational behavior is a primary task in the field of sentiment analysis. Different researchers have proposed their models to perform the sentiment analysis of social media discussions. Existing approaches mainly studying the conversational behavior based on the text in the conversation. In any discussion, the users could have different viewpoints about the topic of conversation. A user can agree or disagree on the topic of discussion. Agreement of a user to the topic is called a stance, and if the user disagrees to the topic, we refer it as disagreement. The classification of the users based on stance and disagreement is not a well-researched area, and need to be explored further. In this work, we have proposed a computational model to classify the members according to stance or disagreement. The proposed model uses the novel approach, and it is a hybrid of topic modeling and VADER (Valence Aware Dictionary and sEntiment Reasoner). To evaluate the proposed model, we have conducted an experiment, and we did use the WhatsApp group discussion, Facebook comments as a dataset. We also compared the proposed model with two baseline approach, topic modeling, and VADER. From the results, we can conclude that the proposed model can effectively classify social media users based on disagreement and stance. © 2020, Springer Nature Singapore Pte Ltd.

  • 16.
    Usman, Muhammad
    et al.
    Blekinge Tekniska Högskola, Fakulteten för datavetenskaper, Institutionen för programvaruteknik.
    Minhas, Nasir Mehmood
    Blekinge Tekniska Högskola, Fakulteten för datavetenskaper, Institutionen för programvaruteknik.
    Use of personality tests in empirical software engineering studies: A review of ethical issues2019Inngår i: PROCEEDINGS OF EASE 2019 - EVALUATION AND ASSESSMENT IN SOFTWARE ENGINEERING, Association for Computing Machinery , 2019, s. 237-242Konferansepaper (Fagfellevurdert)
    Abstract [en]

    There has been a lot of research on personality and its impact on software engineering practice. These studies use different psychological tests to identify personality types of software practitioners. The administration of these tests requires expertise. As the humans are involved, other ethical issues, such as consent, also become important. In this study, we evaluated a small sample of 15 studies that used a psychological test Myers-Briggs Type Indicator (MBTI) in a software engineering context with respect to different ethical issues related to informed consent, qualification of the test administrators and the use of appropriate tests. The results show that most of the studies in our sample seriously lack with respect to various ethical issues. © 2019 Association for Computing Machinery.

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