GOOAL automatic design tool: A role posets based tool to produce object models from problem descriptions
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A number of software analysts may produce different, perhaps all of them correct, solutions from one specific software requirement document. This is because natural language understanding is complex and because each analyst has distinct design experience. A methodology and approach that can be automated and that uses a proposed semi-natural language called 4WL used to accelerate the production of reliable accords between different stakeholders. The supporting software tool called GOOAL, Graphic Object Oriented Analysis Laboratory automatically produces simple object models (UML diagrams) from English or Spanish statements with minimal user participation. These statements, faithfully describe the original problem description sentences. The models are generated analyzing each sentence of the intermediate 4W language version of the original sentence set. With this methodology and supporting software tool, students of Object Oriented technology can visualize the design decisions being made by the system. This methodology and software tool has been used to support the learning process in object Oriented analysis and design courses. The original tool was developed to understand English and it was validated with design artefacts produced by several experts of the University of Colorado. The main results reported by the students, are related with the use of good design practices, a better understanding of UML language and a major interest in the pre programming process. Its technical contribution is the role posets technique.
