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Combinatorial match in production systems (rule-based system) is problematical in several areas of production system application: real-time performance, learning new productions for performance improvement. modeling human cognition. and parallelization. The unique-attribute representation in production systems is a promising approach to eliminate match combinatorics. Earlier investigations have...

This paper presents a new, highly parallel algorithm for OPS5 production system matching, and a multiprocessor architecture to support it. The algorithm is based on a partitioning of the Rete algorithm at the comparison level, suitable for execution on an array of several hundred processing elements. The architecture ’ provides an execution environment which optimizes the algorithm’s performanc...

Each organization has limited resources and in order to better accomplish a higher external demand, the managers are forced to outsource parts of their contracts even to concurrent organizations. In this concurrent environment each organization wants to preserve its decision autonomy and to disclose as little as possible from its business information. To model this interaction our approach is t...

Ordinary t-timed modular Petri Nets are used for modeling, analysis, synthesis and performance evaluation of random topology dedicated production systems. Each system is first decomposed into production line, assembly, disassembly and parallel machine modules followed by derivation of their modular Petri Net models. Two sets of modules, generic and generalized respectively, are derived correspo...

A production system containing a set of machines (also called components) arranged according to a series-parallel configuration is addressed. A set of products must be produced in lots on this production system during a specified finite planning horizon. This paper presents a method for integrating load distribution decisions, and tactical production planning considering the costs of capacity c...

Because the match phase in OPS5-type production systems requires most of the system's execution time and memory accesses, we proposed hash-based parallel production systems, CPPS (Clustered Parallel Production Systems), based on the RETE algorithm for distributed memory parallel computers, or multicomputers to reduce such a bottleneck. CPPS was e ective in speeding up the match phase, but still...