A Novel Modeling Method for C4ISR Effectiveness Requirements

Effectiveness requirements for C4ISR system is difficult to capture and model, due to the fact that the effectiveness requirements may contain certain and uncertain requirements concepts. To solve the problem, the paper suggests a capability meta model which can define both functional and effectiveness features of the requirements. The UML modeling paradigm is extended by introducing fuzzy modeling constructs so as to describe fuzzy concepts of the effectiveness requirements. An Effectiveness Evaluation Function (EEF) based on Bezier curves is introduced to predict the effectiveness of systems. Compared with the existing requirements modeling approaches, the method enables an integrated analysis framework of functional and effectiveness requirements.