Business to Business Transaction Modeling and WWW Support

The information systems that support Electronic Commerce on the Internet are becoming more common and complex. The complexity of these systems increases the need for new models with different degrees of abstraction in order to simplify the visualization of different aspects of the structure, constraints and operation of the software. In this paper we discuss some of the aspects of the commercial transactions presented in the literature. Our first contribution is to organize in a conceptual and logical level some models presented in the literature. We will demonstrate the use of the models to describe an Electronic Commerce application and discuss some aspects of a prototype that we are currently developing. The proposed models are useful not only to describe but also to support the adoption of new aspects in the applications. Another contribution is to demonstrate, in the context of the proposed models, the use of Automated Trust Negotiation.