This paper formulates a collaborative system for modeling business application. The system uses a Semantic Wiki to enable collaboration between the various stakeholders involved in the design of the system and translates the captured intelligence into business models which are used for designing a business system. Categories and Subject Descriptors D.2.1 [Software Engineering]: Requirements/Specifications ? Languages D.3.1 [Programming Languages]: Formal Definitions and Theory ? Semantics H.3.5 [Information Storage and Retrieval]: Online Information Services ? Web-based services H.5.2 [Information Interfaces and Presentation]: User Interfaces ? Natural language General Terms Theory, Experimentation, Languages Keywords Software, Modeling, Semantic Web, BPEL, RDF