Enhancing requirements engineering by natural language based conceptual predesign

Information systems design usually starts with natural language requirements specifications that result from dialogues between future users and system analysts. According to academic standards these specifications then are evaluated for establishing a conceptual model. However, this step of conceptual design suffers from several problems. Our paper outlines the results of overcoming these problems, gained so far within the NIBA project and presents some recent work concerning the analysis of complex sentences such as 'if/then-constructions' and their transformation to dynamic model components.