An operational requirement description model for open systems

The author presents a conceptual model, REMOS, for incomplete requirement descriptions. The model is especially designed for supporting the requirement specification and the analysis of open systems. An analysis of existing models and languages shows the main problem in requirement engineering to be the harmony between a well-defined basic model and a convenient language. REMOS combines the complex requirements of open systems with the basic characteristics of transaction-oriented systems, which are fault-tolerant and offer security and privacy mechanisms. REMOS and the applicative language RELOS take advantage of transaction properties. REMOS aids users with making their requirements more clear, and RELOS offers a medium for requirement definition.<
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