On importance of non-functional requirements in agile software projects - a survey
[ 1 ] Instytut Informatyki, Wydział Informatyki i Telekomunikacji, Politechnika Poznańska | [ P ] employee
2020
chapter in monograph
english
- non-functional requirements
- importance
- agile
- agile practices
- survey
EN Context. Among many Agile software development practices, over 30 concern Requirements Engineering (RE). However, none of them mentions explicitly non-functional requirements (NFRs). The question arises – how important are NFRs in Agile software projects? Method. We conducted a survey asking Agile software development practitioners how they perceive the importance of having NFRs defined in their projects. Then, we juxtaposed the answers with their opinions on the perceived importance of 31 Agile RE practices. Results. The opinions of 118 respondents from a wide range of countries around the globe allowed us to determine how important it is to define NFRs. Moreover, we showed their importance from the perspective of the ranking of Agile RE practices. We also identified some relationships between the demographic data such as experience and the perceived importance of requirements concerning quality. Conclusions. We found that over 77% of respondents perceive having NFRs defined in Agile software project as at least important, and for 30% it is critical. Also, the perceived importance of NFRs increases with the increase of respondents’ experience.
03.08.2019
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