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Regression testing goals: View of practitioners and researchers
Blekinge Institute of Technology, Faculty of Computing, Department of Software Engineering.ORCID iD: 0000-0001-8177-4355
Blekinge Institute of Technology, Faculty of Computing, Department of Software Engineering.ORCID iD: 0000-0002-1532-8223
Blekinge Institute of Technology, Faculty of Computing, Department of Software Engineering.ORCID iD: 0000-0001-7266-5632
Blekinge Institute of Technology, Faculty of Computing, Department of Software Engineering.ORCID iD: 0000-0003-3567-9300
2017 (English)In: 24th Asia-Pacific Software Engineering Conference Workshops (APSECW), IEEE, 2017, p. 25-32Conference paper, Published paper (Refereed)
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.

Place, publisher, year, edition, pages
IEEE, 2017. p. 25-32
Keywords [en]
Regression testing, Regression testing goals, GQM, Focus group
National Category
Computer Systems
Identifiers
URN: urn:nbn:se:bth-16009DOI: 10.1109/APSECW.2017.23ISI: 000428319200008ISBN: 978-1-5386-2649-8 (electronic)OAI: oai:DiVA.org:bth-16009DiVA, id: diva2:1192426
Conference
24th Asia-Pacific Software Engineering Conference, Nanjing
Projects
EASE (Embedded Applications Software Engineering, ease.cs.lth.se)Available from: 2018-03-22 Created: 2018-03-22 Last updated: 2022-09-18Bibliographically approved
In thesis
1. Regression Testing Challenges and Solutions: An Industry-Academia Perspective
Open this publication in new window or tab >>Regression Testing Challenges and Solutions: An Industry-Academia Perspective
2019 (English)Licentiate thesis, comprehensive summary (Other academic)
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.

Place, publisher, year, edition, pages
Karlskrona, Sweden: Blekinge Tekniska Högskola, 2019. p. 146
Series
Blekinge Institute of Technology Licentiate Dissertation Series, ISSN 1650-2140 ; 2
National Category
Software Engineering
Identifiers
urn:nbn:se:bth-17381 (URN)978-91-7295-365-9 (ISBN)
Presentation
2019-01-08, J1650, Campus Gräsvik, Karlskrona, 14:00 (English)
Opponent
Supervisors
Funder
VINNOVA, 2015-03235
Available from: 2018-12-06 Created: 2018-12-05 Last updated: 2019-01-17Bibliographically approved
2. Understanding and improving regression testing practice
Open this publication in new window or tab >>Understanding and improving regression testing practice
2022 (English)Doctoral thesis, comprehensive summary (Other academic)
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.

Place, publisher, year, edition, pages
Karlskrona: Blekinge Tekniska Högskola, 2022. p. 297
Series
Blekinge Institute of Technology Doctoral Dissertation Series, ISSN 1653-2090 ; 7
Keywords
Regression testing, Goals, GQM, Replication, Checklists
National Category
Software Engineering
Research subject
Software Engineering
Identifiers
urn:nbn:se:bth-23634 (URN)978-91-7295-444-1 (ISBN)
Public defence
2022-10-31, C413A, Campus Grasvik, Karlskrona, 13:00 (English)
Opponent
Supervisors
Available from: 2022-09-20 Created: 2022-09-18 Last updated: 2022-10-10Bibliographically approved

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Petersen, KaiAli, Nauman binWnuk, Krzysztof

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