Design and operation of process plants are now dominated by constraints imposed by safety, environmental impact, waste minimiza tion, cost effectiveness, controllability, and operability over the complete product and process life cycle including market analysis, conceptual and detailed design through to commissioning, operation, and disposal of products and decommissioning of the plant This means it inevitably in volves a large number of activities carried out by teams of engineers which draw on a variety of technologies that rely on diverse types of informa tion having complex data structures and relationships which must be shared by team members and integrated through computer based software packages Conflicting goals, uncertainty, and multiple solutions are crucial elements of these activities which are essentially about decision mak ing This paper describes the architectural and functional characteristics of a computer integrated concurrent engineering environment for life cy cle chemical manufacturin...

methods

Collaborative design: knowledge-based systems for concurrent engineering.

A Concurrent Engineering Environment for Chemical Manufacturing

This paper addresses collaborative product development, focusing on computer support of collaboration between users of CAD systems alone, between users of CAPP systems alone and between users of both CAD and CAPP systems. Computer support of collaborative product development may enhance informal information exchange. Apart from formal information exchange between CAD and CAPP systems, informal information exchange is necessary in achieving the goals of Concurrent Engineering. Collaboration can be started in a number of ways; as a result of one or more conflicts in constraints belonging to several users or voluntarily on the initiative of a user. Both these ways of starting collaboration should be supported. A prototype implementation restricted to a re-design support oriented CAD system supporting both conflict based and voluntary communication is presented. The re-design support system currently supports several constraint types. The present implementation uses parameter constraints in the support of conflict based communication. A parameter constraint solver based on the use of simulated annealing is employed.

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Collaborative design: knowledge-based systems for concurrent engineering.

Citations

A Concurrent Engineering Environment for Chemical Manufacturing

Collaborative product development in CAD and CAPP, an approach based on communication due to constraint conflicts and user initiative

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