Browsing by Author "Johri, A."
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Item An Approach to Integrating Manufacturing Systems.(1988) Harhalakis, George; Mark, Leo; Johri, A.; Cochrane, B.; ISRComputer Integrated Manufacturing is often misconstrued as simply the integration of CAD and CAM. In act it is much more. It is the Systems approach of tying together the various automation tools available today, so as to enable the control of an entire manufacturing operation. This includes the business functions as well. The generally accepted way to go about this is to develop a database management system, with the required capabilities. It is stressed here that Manufacturing Resource Planning- II (MRP-II), has the best inherent features, for the tying together of the various manufacturing functions. Initial work deals with Computer Aided Design (CAD) and MRP-II integration, the integration being centered around parts specifications, product structures, and engineering changes. A model for this integration is presented along with the rules of interaction between the systems. The model is based on an interoperability system, and uses a formal language named 'Update Dependencies' which has been defined for specifying the various operations in and beween MRP-II and CAD. This has been used to test the model design specification. Future work includes the introduction of Computer Aided Process Planning (CAPP), to the present model.Item Functional Design of an Integrated CIM System at the Facility Level.(1988) Harhalakis, George; Ssemakula, M.E.; Johri, A.; ISRComputer Integrated Manufacturing (CIM) is often understood as simply the integration of CAD and CAM. In fact it is much more than this. It is the systems approach of linking together the various automation tools available today, so as to enable the control of an entire manufacturing operation, as well as related business functions. Unlike most of the recent research in CIM, we are not addressing the integration of hardware and software on the shop floor. Instead, we consider that Manufacturing Resource Planning (MRP-II), has the best inherent features for the linking of the various high level manufacturing functions. In this wor^, integration centers around parts specifications, routings and the workcenters in the system. A model for this integration at the facility level, is presented along with the rules of interaction between the systems. The model is based on-the principle of database interoperability, and will use a formal language named 'Update Dependencies' for the implementation.Item A Working Prototype MRP II/CAD System.(1988) Harhalakis, George; Mark, Leo; Johri, A.; ISRComputer Integrated Manufacturing is often misconstrued as simply the integration of CAD and CAM. In fact it is much more. It is the systems approach of tying together the various automation tools available today, so as to enable the control of an entire manufacturing operation. This includes the business functions as well. The generally accepted way to go about this is to develop a database management system, with the required capabilities. It is stressed here that Manufacuring Resource Planning - II (MRP-II), has the best inherent features, for the tying together of the various manufacturing functions. Initial work deals with Computer Aided Design (CAD) and MRP-II integration, the integration being centered around parts specifications, product structures, and engineering changes. A model for this integration is presented along with the rules of interaction between the systems. The model is based on an interoperability system, and uses a formal language named 'Update Dependencies' which has been defined for specifying the various operations in and between MRP-II and CAD. This has been used to test the model design specification. Future work includes the introduction of Computer Aided Process Planning (CAPP), to the present model.