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Huijgens, H.K.M. (author), Spadini, D. (author), Stevens, Dick (author), Visser, Niels (author), van Deursen, A. (author)Background: During the period of one year, ING developed an approach for software analytics within an environment of a large number of software engineering teams working in a Continuous Delivery as a Service setting. Goal: Our objective is to examine what factors helped and hindered the implementation of software analytics in such an environment...conference paper 2018
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Aué, J. (author), Aniche, Maurício (author), Lobbezoo, Maikel (author), van Deursen, A. (author)Service-oriented architectures are more popular than ever, and increasingly companies and organizations depend on services offered through Web APIs. The capabilities and complexity of Web APIs differ from service to service, and therefore the impact of API errors varies. API problem cases related to Adyen's payment service were found to have...conference paper 2018
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Castelein, J. (author), Aniche, Maurício (author), Soltani, M. (author), Panichella, A. (author), van Deursen, A. (author)Database-centric systems strongly rely on SQL queries to manage and manipulate their data. These SQL commands can range from very simple selections to queries that involve several tables, subqueries, and grouping operations. And, as with any important piece of code, developers should properly test SQL queries. In order to completely test a SQL...conference paper 2018
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Hejderup, J.I. (author), van Deursen, A. (author), Gousios, G. (author)A popular form of software reuse is the use of open source software libraries hosted on centralized code repositories, such as Maven or npm. Developers only need to declare dependencies to external libraries, and automated tools make them available to the workspace of the project. Recent incidents, such as the Equifax data breach and the leftpad...conference paper 2018
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Soltani, M. (author), Derakhshanfar, P. (author), Panichella, A. (author), Devroey, Xavier (author), Zaidman, A.E. (author), van Deursen, A. (author)EvoCrash is a recent search-based approach to generate a test case that reproduces reported crashes. The search is guided by a fitness function that uses a weighted sum scalarization to combine three different heuristics: (i) code coverage, (ii) crash coverage and (iii) stack trace similarity. In this study, we propose and investigate two...conference paper 2018
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Huijgens, H.K.M. (author), van Deursen, A. (author), van Solingen, D.M. (author)Context: In this paper we present a multiple case study on the insights of software organizations into stakeholder satisfaction and (perceived) value of their software projects. Our study is based on the notion that quantifying and qualifying project size, cost, duration, defects, and estimation accuracy needs to be done in relation with...journal article 2017
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De Souza Coelho, R. (author), Almeida, Lucas (author), Gousios, G. (author), van Deursen, A. (author), Treude, Christoph (author)Adequate handling of exceptions has proven difficult for many software engineers. Mobile app developers in particular, have to cope with compatibility, middleware, memory constraints, and battery restrictions. The goal of this paper is to obtain a thorough understanding of common exception handling bug hazards that app developers face. To...journal article 2017
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Huijgens, H.K.M. (author), van Deursen, A. (author), Minku, Leandro L. (author), Lokan, Chris (author)Context: The research literature on software development projects usually assumes that effort is a good proxy for cost. Practice, however, suggests that there are circumstances in which costs and effort should be distinguished. Objectives: We determine similar-ities and differences between size, effort, cost, duration, and num-ber of defects of...conference paper 2017
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- van Deursen, A. (author), Zaidman, A.E. (author), Aniche, Maurício (author), Mairet, V.A.P. (author), van den Oever, S.Y. (author) book 2017
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Roy, S. (author), Hermans, F.F.J. (author), van Deursen, A. (author)Despite being popular end-user tools, spreadsheets suffer from the vulnerability of error-proneness. In software engineering, testing has been proposed as a way to address errors. It is important therefore to know whether spreadsheet users also test, or how do they test and to what extent, especially since most spreadsheet users do not have...conference paper 2017
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Dintzner, N.J.R. (author), van Deursen, A. (author), Pinzger, M. (author)Evolving a large scale, highly variable system is a challenging task. For such a system, evolution operations often require to update consistently both their implementation and its feature model. In this context, the evolution of the feature model closely follows the evolution of the system. The purpose of this work is to show that fine...journal article 2017
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Roy, S. (author), Hermans, F.F.J. (author), van Deursen, A. (author)Spreadsheets in the industry are used by multiple employees in organizations, and they remain in use for several years. Maintenance of existing spreadsheets is thus common. One of the issues in maintaining spreadsheets is the fact that formulas create cell dependencies, and these dependencies are invisible to users. To address this, dependence...conference paper 2017
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Raemaekers, S.B.A. (author), van Deursen, A. (author), Visser, Joost (author)Systems that depend on third-party libraries may have to be updated when updates to these libraries become available in order to benefit from new functionality, security patches, bug fixes, or API improvements. However, often such changes come with changes to the existing interfaces of these libraries, possibly causing rework on the client...journal article 2017
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van Deursen, A. (author), Aniche, Maurício (author), Aué, Joop (author), Slag, R.G.J. (author), de Jong, M. (author), Nederlof, A. (author), Bouwers, E.M. (author)Teaching software architecture is hard. The topic is abstract and is best understood by experiencing it, which requires proper scale to fully grasp its complexity. Furthermore, students need to practice both technical and social skills to become good software architects. To overcome these teaching challenges, we developed the Collaborative...conference paper 2017
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Perez, Alexandre (author), Abreu, Rui (author), van Deursen, A. (author)Current metrics for assessing the adequacy of a test- suite plainly focus on the number of components (be it lines, branches, paths) covered by the suite, but do not explicitly check how the tests actually exercise these components and whether they provide enough information so that spectrum-based fault localization techniques can perform...conference paper 2017
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Soltani, M. (author), Panichella, A. (author), van Deursen, A. (author)To reduce the effort developers have to make for crash debugging, researchers have proposed several solutions for automatic failure reproduction. Recent advances proposed the use of symbolic execution, mutation analysis, and directed model checking as underling techniques for post-failure analysis of crash stack traces. However, existing...conference paper 2017
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de Jong, M. (author), van Deursen, A. (author), Cleve, Anthony (author)When a web service or application evolves, its database schema — tables, constraints, and indices — often need to evolve along with it. Depending on the database, some of these changes require a full table lock, preventing the service from accessing the tables under change. To deal with this, web services are typically taken offline momentarily...conference paper 2017
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Wieman, Rick (author), Aniche, Maurício (author), Lobbezoo, Willem (author), Verwer, S.E. (author), van Deursen, A. (author)Passive learning techniques infer graph models on the behavior of a system from large trace logs. The research community has been dedicating great effort in making passive learning techniques more scalable and ready to use by industry. However, there is still a lack of empirical knowledge on the usefulness and applicability of such techniques in...conference paper 2017
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Tómasdóttir, Kristín Fjóla (author), Aniche, Maurício (author), van Deursen, A. (author)Automatic static analysis tools help developers to automatically spot code issues in their software. They can be of extreme value in languages with dynamic characteristics, such as JavaScript, where developers can easily introduce mistakes which can go unnoticed for a long time, e.g., a simple syntactic or spelling mistake. Although research has...conference paper 2017
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Ang, Aaron (author), Perez, Alexandre (author), van Deursen, A. (author), Abreu, Rui (author)In the last two decades, a great amount of effort has been put in researching automated debugging techniques to support developers in the debugging process. However, in a widely cited user study published in 2011, Parnin and Orso found that research in automated debugging techniques made assumptions that do not hold in practice, and suggested...conference paper 2017