Role of Non-functional Requirements in projects’ success

Abstract

Non-functional Requirements (NFRs) are the vital part of software development. NFRs define the quality attributes of the software product. According to the researchers’ nonfunctional requirements are of equal importance as of functional requirements. But among practitioners it is debatable, as most of them do not give significance value to NFRs because of the rapid development nature of the projects. In the literature it is encouraged to provide proper attention to non-functional requirements during the development of the project because it could lead to new functional requirements and hence would tend to change the development approach. It is also believed that the absence of non-functional requirement could cause extra cost or customer’s dissatisfaction. Hence, this paper aims to conduct an industrial survey to gather the data about how software practitioners think about the importance of nonfunctional requirements in the project success. Furthermore, we will be applying statistical testing on our data to analyze the results to check the significance role of NFRs in the success of the software project.