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Autor(en): Femmer, Henning
Méndez Fernández, Daniel
Wagner, Stefan
Eder, Sebastian
Titel: Rapid quality assurance with requirements smells
Erscheinungsdatum: 2016
Dokumentart: Preprint
Bemerkungen: Accepted for publication in the Journal of systems and software<br>This work was performed within the project Q-Effekt; it was partially funded by the German Federal Ministry of Education and Research (BMBF) under grant no. 01IS15003 A-B.
Zusammenfassung: Context: Bad requirements quality can cause expensive consequences during the software development lifecycle, especially if iterations are long and feedback comes late. Objectives: We aim at a light-weight static requirements analysis approach that allows for rapid checks immediately when requirements are written down. Method: We transfer the concept of code smells to Requirements Engineering as Requirements Smells. To evaluate the benefits and limitations, we define Requirements Smells, realize our concepts for a smell detection in a prototype called Smella and apply Smella in a series of cases provided by three industrial and a university context. Results: The automatic detection yields an average precision of 59% at an average recall of 82% with high variation. The evaluation in practical environments indicates benefits such as an increase of the awareness of quality defects. Yet, some smells were not clearly distinguishable. Conclusion: Lightweight smell detection can uncover many practically relevant requirements defects in a reasonably precise way. Although some smells need to be defined more clearly, smell detection provides a helpful means to support quality assurance in Requirements Engineering, for instance, as a supplement to reviews.
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