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Graphical User Interface Prototyping for Distributed Requirements Engineering


Sven Scheibmayr

Finding and understanding the right requirements is essential for every software project. This book deals with the challenge to improve requirements engineering in distributed software projects. The use of graphical user interface (GUI) prototypes can help stakeholders in such projects to elicit and specify high quality requirements. The research objective of this study is to develop a method and a software artifact to support the activities in the early requirements engineering phase in order to overcome some of the difficulties and improve the quality of the requirements, which should eventually lead to better software products. Therefore, this study seeks to support the work with these prototypes in distributed projects. It is based on a theoretical analysis and follows a design science research approach.
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5. Evaluation


The artifacts, which have been developed during design science research, should be evaluated in order to examine if they serve the purpose. This evaluation of the developed method and tool is described in this chapter. In the first section, the context of the evaluation is introduced and two propositions, which are evaluated, are derived from theory. The next section describes how the evaluation was conducted. Finally, the last section in this chapter reports the evaluation results.

5.1. Evaluation Context

In their research framework of design science, March and Smith (1995) discuss the different research activities build, evaluate, theorize, justify, which are performed in design science research for all cases of different research outputs (constructs, models, methods, instantiations) of design science (March and Smith, 1995) (see Section 2.4). For the evaluation of methods, they consider the following four properties as important:

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