Ein CAD-Kern fuer die verteilte Bearbeitung im Bauwesen

摘要

Object-oriented technologies have been utilized in the last years for the advancement of CAD-Systems in Civil Engineering applications. The current state-of-the-art in CAD-technology allows for generating complex digital building models. However, CAD-sys-tems available do not support sufficiently the specific requirements of communication processes in complex construction projects. A stand-alone use of separate CAD-applications is still by far the most common way in CAD usage. Thus, the cooperation between engineers of different disciplines is still largely based on exchanging CAD-documents. It is a well known fact that this almost inevitably leads to inconsistent states in the wide variety of documents representing a complete project. This is true even with the common availability of modern computer networks (Internet) and databases which could be a basis for net-distributed cooperations between engineers engaged in a joint project. Current technology in itself will not be able to solve this problem but it will be a necessary technological basis for resolving conflicting solutions in a multi-user CAD-environment. This paper describes a proposed solution to this problem based upon a net-distributed CAD-cooperation. Predominant emphasis of this solution is placed on ensuring consistency of information in complex construction projects.