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Empirical research methods in software engineering

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  • 10.1007/978-3-540-45143-3_2

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  • Software engineering Engineering & Materials Science 100%
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Empirical Research Methods in Software and Web Engineering

T1 - Empirical research methods in software engineering

AU - Wohlin, Claes

AU - Höst, Martin

AU - Henningsson, K

N2 - Software engineering is not only about technical solutions. It is to a large extent also concerned with organizational issues, project management and human behaviour. For a discipline like software engineering, empirical methods are crucial, since they allow for incorporating human behaviour into the research approach taken. Empirical methods are common practice in many other disciplines. This chapter provides a motivation for the use of empirical methods in software engineering research. The main motivation is that it is needed from an engineering perspective to allow for informed and well-grounded decision. The chapter continues with a brief introduction to four research methods: controlled experiments, case studies, surveys and postmortem analyses. These methods are then put into an improvement context. The four methods are presented with the objective to introduce the reader to the methods to a level that it is possible to select the most suitable method at a specific instance. The methods have in common that they all are concerned with quantitative data. However, several of them are also suitable for qualitative data. Finally, it is concluded that the methods are not competing. On the contrary, the different research methods can preferably be used together to obtain more sources of information that hopefully lead to more informed engineering decisions in software engineering.

AB - Software engineering is not only about technical solutions. It is to a large extent also concerned with organizational issues, project management and human behaviour. For a discipline like software engineering, empirical methods are crucial, since they allow for incorporating human behaviour into the research approach taken. Empirical methods are common practice in many other disciplines. This chapter provides a motivation for the use of empirical methods in software engineering research. The main motivation is that it is needed from an engineering perspective to allow for informed and well-grounded decision. The chapter continues with a brief introduction to four research methods: controlled experiments, case studies, surveys and postmortem analyses. These methods are then put into an improvement context. The four methods are presented with the objective to introduce the reader to the methods to a level that it is possible to select the most suitable method at a specific instance. The methods have in common that they all are concerned with quantitative data. However, several of them are also suitable for qualitative data. Finally, it is concluded that the methods are not competing. On the contrary, the different research methods can preferably be used together to obtain more sources of information that hopefully lead to more informed engineering decisions in software engineering.

U2 - 10.1007/978-3-540-45143-3_2

DO - 10.1007/978-3-540-45143-3_2

M3 - Book chapter

SN - 978-3-540-40672-3

BT - Lecture Notes in Computer Science (Empirical Methods and Studies in Software Engineering)

PB - Springer

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Empirical research methods for software engineering

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2007, Proceedings of the twenty-second IEEE/ACM international conference on Automated software engineering - ASE '07

Related Papers

Eudis Teixeira , Liliane Fonseca

Context: Empirical studies are gaining recognition in the Software Engineering(SE) research community. In order to foster empirical research, it is essential understand the environments, guidelines, process, and other mechanisms available to support these studies in SE. Goal: Identifying the mechanisms used to support the empirical strategies adopted by the researches in the major Empirical Software Engineering (ESE) scientific venues. Method: We performed a systematic mapping study that included all full papers published at EASE, ESEM and ESEJ since their first editions. A total of 898 studies were selected. Results: We provide the full list of identified support mechanisms and the strategies that uses them. The most commonly mechanisms used to support the empirical strategies were two sets of guidelines, one to secondary studies and another to experiments. The most reported empirical strategies are experiments and case studies. Conclusions: The use of empirical methods in SE has increased over the years but many studies do not apply these methodsnor use mechanisms to guide their research. Therefore, the list of support mechanisms, where and how they were applied is a major asset to the SE community. Such asset can foster empirical studies aiding the choice regarding which strategies and mechanisms to use in a research. Also, we identified new perspectives and gaps that foster the development of resources to aid empirical studies.

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Abstract This article reports on an experimental evaluation of a unified checklist for case study and experimental research. The checklist aims at exhibiting the underlying, shared, structure of observational and experimental research, and is based on several published checklist in software engineering and other disciplines. We asked a small sample of subjects to apply it to two papers, one reporting on a case study and one reporting on an experiment.

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Book cover

Guide to Advanced Empirical Software Engineering pp 285–311 Cite as

Selecting Empirical Methods for Software Engineering Research

  • Steve Easterbrook 4 ,
  • Janice Singer 5 ,
  • Margaret-Anne Storey 6 &
  • Daniela Damian 6  

8784 Accesses

418 Citations

Selecting a research method for empirical software engineering research is problematic because the benefits and challenges to using each method are not yet well catalogued. Therefore, this chapter describes a number of empirical methods available. It examines the goals of each and analyzes the types of questions each best addresses. Theoretical stances behind the methods, practical considerations in the application of the methods and data collection are also briefly reviewed. Taken together, this information provides a suitable basis for both understanding and selecting from the variety of methods applicable to empirical software engineering.

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Department of Computer Science, University of Toronto, M5S 2E4, Toronto, Ontario, Canada

Steve Easterbrook

Institute for Information Technology, National Research Council Canada, K1A 0R6, Ottawa, Ontario, Canada

Janice Singer

Dept. of Computer Science, University of Victoria, V8W 3P6, Victoria, BC, Canada

Margaret-Anne Storey & Daniela Damian

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Fraunhofer Center Maryland, 20742, College Park, MD, USA

Forrest Shull

National Research Council Canada, K1A 0R6, Ottawa, Ontario, Canada

Simula Research Laboratory, NO-1325, Lysaker, Norway

Dag I. K. Sjøberg

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Easterbrook, S., Singer, J., Storey, MA., Damian, D. (2008). Selecting Empirical Methods for Software Engineering Research. In: Shull, F., Singer, J., Sjøberg, D.I.K. (eds) Guide to Advanced Empirical Software Engineering. Springer, London. https://doi.org/10.1007/978-1-84800-044-5_11

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Empirical Research in Software Engineering

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Empirical Research is defined as any research or study where conclusions of the study is precisely drawn from concretely empirical evidence which is verifiable. Empirical Research aims to use statistical testing techniques to test the hypothesis and hence reduces the gap between theory and practice.

Importance of Empirical Research: It helps in improving, analyzing and assessing the procedures and processes of software development. It also provides guidelines in decision making. Empirical Research is useful to researchers, academicians and the software industry in different scenarios.

  • Software Industry: Empirical Study can be used to answer the questions related to industrial practices and can improve the strategies and methods of software development. The predictive models built in Empirical Research can be implemented in similar industrial applications in near future. The empirical research allows software developers to apply the results of the experiment and ascertain that set of good procedures and processes are followed at some point of software development. Thus, the empirical research guides towards determining the best of the resultant software processes and products.
  • Researchers: According to researchers, the results can be used to provide information about existing guidelines and trends regarding future research. Empirical study is useful in establishing the generalizability of results related to new subjects or data sets by researchers.
  • Academicians: Empirical research helps academicians in finding answers of their question through interviewing different stakeholders, conducting a scientific experiment or conducting a survey. Academicians make predictions in the form of hypotheses. With the help of empirical research, these hypotheses can be tested, and their results can be shown as either being accepted or rejected. Thus, on the basis of result Academicians can make a conclusion about a particular theory or make some generalization.

Basic elements of Empirical Research:

empirical research methods in software engineering

  • Purpose: The purpose states the objective of the research, specific motives in the form of research questions, relevance topics and reason of research.
  • Process: Process gives a detailed sequence of steps need to be taken to conduct a research. It provides a method in which the research will be conducted. It provides details about the methodologies, techniques and procedures to be used in the research.
  • Participants: Participants are those persons which are involved in the research as subjects. They are closely interviewed to obtain the research results. Ethical issues in Empirical research must be considered when dealing with participants so that they don’t get harmed in any way.
  • Product: Outcome of research produces Product. The final outcome of Empirical Research provides the answers of the research questions.Any new technique or method can be considered as a product of the Empirical study or research. Few of the examples are conference article, journal paper, thesis, technical report.

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