Abstract
[Context and motivation] When a software-based system evolves, its requirements continuously change. This affects the acceptance tests, which must be adapted accordingly in order to maintain the quality of the evolving system. [Question/problem] In practice, requirements and acceptance test documents are not always aligned with each other, nor with the actual system behavior. Such inconsistencies may introduce software quality problems, unintended costs and project delays. [Principal ideas/results] To keep evolving requirements and their associated acceptance tests aligned, we are developing an approach called GuideGen that automatically generates guidance in natural language on how to modify impacted acceptance tests when a requirement is changed. We evaluated GuideGen using real-world data from three companies. For 262 non-trivial changes of requirements, we generated guidance on how to change the affected acceptance tests and evaluated the quality of this guidance with seven experts. The correctness of the guidance produced by our approach ranged between 67 and 89% of all changes for the three evaluated data sets. We further found that our approach performed better for agile requirements than for traditional ones. [Contribution] Our approach facilitates the alignment of acceptance tests with the actual requirements and also improves the communication between requirements engineers and testers.
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Notes
- 1.
This is a heuristic value which yielded excellent performance in our evaluation, cf. Sect. 4.2.
- 2.
https://docs.google.com/forms/d/1vLJYFIjmtLjzC60e2iT3JLbs9ST8LmOOhO9kotfrBwo/edit. For confidentiality reasons, the file does not contain the real data from our data sets, but only the example shown in this paper.
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Acknowledgements
We thank our experts and their companies for investing time and effort into the evaluation of our approach. This work was partially funded by the Swiss National Science Foundation under grant 200021-157004/1.
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Hotomski, S., Ben Charrada, E., Glinz, M. (2018). Keeping Evolving Requirements and Acceptance Tests Aligned with Automatically Generated Guidance. In: Kamsties, E., Horkoff, J., Dalpiaz, F. (eds) Requirements Engineering: Foundation for Software Quality. REFSQ 2018. Lecture Notes in Computer Science(), vol 10753. Springer, Cham. https://doi.org/10.1007/978-3-319-77243-1_15
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