Specifying Requirements for Modern Software Development: A Test-Oriented Methodology
INTERNATIONAL JOURNAL OF SOFTWARE ENGINEERING AND KNOWLEDGE ENGINEERING(2024)
Abstract
Most modern computer systems operate in distributed environments. To develop and test such applications, services, and systems, it is necessary to consider the physical devices, architectures, communication, security and deployment mechanisms involved. However, the requirements' specification process still replicates that of traditional applications: details remain implicit and are hidden in the description. As a result, specifications are difficult to identify and, ultimately, tests are designed in the traditional way: they overlook constraints and fail to achieve the desired effects. Our objective is to design a methodology for specifying requirements in both traditional software and applications deployed in distributed environments. We present an iterative and incremental requirements specification methodology. This methodology allows us to describe functional requirements and incorporate non-functional or quality constraints, which is the main contribution of this proposal. To ensure that quality requirements are specified during the design phase, the methodology proposes a series of phases, stages and artefacts that ensure the discovery and consideration of these requirements. In order to find out the strengths and weaknesses of our methodology, we have carried out a comparative study with other similar proposals in the literature. To this end, evaluation criteria were defined by considering standards and good practices in Requirements Engineering. The results of the comparative study show that our methodology constitutes a solid procedure for a detailed requirements specification from the beginning of the software development cycle. This represents an advance over the rest of the proposals studied. Our methodology contributes to the simplification of the design and execution phases of software testing, enabling traceability between the specified requirements and the designed test cases.
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Key words
Software requirements specification,distributed systems,software testing,quality requirements
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