Visibility in event based systems

The construction of information integrating systems for virtual enterprises raises a set of issues concerned with coupling the systems of independent enterprises in a controlled, flexible and easily-understood manner. In particular, these independent enterprises are typically large-scale, scattered on the Internet, and they involve in different kinds of heterogeneous data or information. Basically, the information architectures rely on wide ranges of data sources that are not completely federated. Moreover, making those architectures fatally ends up in a new system. In order to solve these problems, we review the research work related to this paper as well as the needs to study on the constraints between distributed objects. According to distributed object paradigm, we present the enterprise object modeling techniques in a CORBA/IIOP based enterprise integrating system, ViaScope, which provides an infrastructure to support a uniform access to distributed enterprise resources, and describes the scheduler model supporting constraints of enterprise-wide information processing.