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RGML: A Specification Language that Supports the Characterization of Requirements Generation ProcessesSidky, Ahmed Samy 27 August 2003 (has links)
Despite advancements in requirements generation models, methods and tools, low quality requirements are still being produced. One potential avenue for addressing this problem is to provide the requirements engineer with an interactive environment that leads (or guides) him/her through a structured set of integrated activities that foster "good" quality requirements. While that is our ultimate goal, a necessary first step in developing such an environment is to create a formal specification mechanism for characterizing the structure, process flow and activities inherent to the requirements generation process. In turn, such specifications can serve as a basis for developing an interactive environment supporting requirements engineering.
Reflecting the above need, we have developed a markup language, the Requirements Generation Markup Language (RGML), which can be used to characterize a requirements generation process. The RGML can describe process structure, flow of control, and individual activities. Within activities, the RGML supports the characterization of application instantiation, the use of templates and the production of artifacts. The RGML can also describe temporal control within a process as well as conditional expressions that control if and when various activity scenarios will be executed. The language is expressively powerful, yet flexible in its characterization capabilities, and thereby, provides the capability to describe a wide spectrum of different requirements generation processes. / Master of Science
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Analysis and Evaluation of Methods for Activities in the Expanded Requirements Generation Model (x-RGM)Lobo, Lester Oscar 30 July 2004 (has links)
In recent years, the requirements engineering community has proposed a number of models for the generation of a well-formulated, complete set of requirements. However, these models are often highly abstract or narrowly focused, providing only pieces of structure and parts of guidance to the requirements generation process. Furthermore, many of the models fail to identify methods that can be employed to achieve the activity objectives. As a consequence of these problems, the requirements engineer lacks the necessary guidance to effectively apply the requirements generation process, and thus, resulting in the production of an inadequate set of requirements.
To address these concerns, we propose the expanded Requirements Generation Model (x-RGM), which consists of activities at a more appropriate level of abstraction. This decomposition of the model ensures that the requirements engineer has a clear understanding of the activities involved in the requirements generation process. In addition, the objectives of all the activities defined by the x-RGM are identified and explicitly stated so that no assumptions are made about the goals of the activities involved in the generation of requirements. We also identify sets of methods that can be used during each activity to effectively achieve its objectives. The mapping of methods to activities guides the requirements engineer in selecting the appropriate techniques for a particular activity in the requirements engineering process. Furthermore, we prescribe small subsets of methods for each activity based on commonly used selection criteria such that the chosen criterion is optimized. This list of methods is created with the intention of simplifying the task of choosing methods for the activities defined by the x-RGM that best meet the selection criterion goal / Master of Science
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