Preventing Requirement Defects: An Experiment in Process Improvement | Zendy

Søren Lauesen | Zendy; Otto Vinter | Zendy

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Preventing Requirement Defects: An Experiment in Process Improvement

Author(s) -

Søren Lauesen,

Otto Vinter

Publication year - 2001

Publication title -

requirements engineering

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.462

H-Index - 56

eISSN - 1432-010X

pISSN - 0947-3602

DOI - 10.1007/pl00010355

Subject(s) - usability , computer science , product (mathematics) , software engineering , process (computing) , new product development , user interface , extreme programming , user requirements document , unit testing , user story , software , engineering , systems engineering , human–computer interaction , software development process , software development , business , marketing , operating system , geometry , mathematics

Inadequate requirements cause many problems in software products. This paper reports on an experiment to reduce the number of requirement defects. We analysed the present defects in a real-life product and estimated the likely effect of 44 prevention techniques. We had hoped a novel combination of techniques would come up, but the best approach was quite well known, although new to the company:study the user tasks better, make early prototypes of the user interface, and test them for usability. This approach was tried out in a new development project in the same company. Due to the new approach, there was no doubt about require- ments during programming, and as a result it became the first project in the company that was completed on time and without stress. Usability was drastically improved, and as a result the product sold twice as many units as similar products, and at twice the unit price.

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