A hierarchical, multi-objective approach to the analysis, design, and selection of computer-integrated manufacturing systems

Abstract

This paper develops a hierarchical, multi-objective programming framework for decision support, analysis, and design of computer-integrated manufacturing (CIM) systems. We demonstrate that each component of CIM, and CIM as a whole, is associated with conflicting objectives such as maximizing quality, profit, productivity, and flexibility. Realizing these objectives and finding appropriate ways to state and resolve their conflicts can play a major role in the development of CIM systems. We begin with an overview of hierarchical decision making as related to the time domain, and some important components of CIM as related to automation. We then relate manufacturing databases and the structure of decision support systems considering multiple and conflicting objectives. A hierarchical multi-objective framework, based on vertical and horizontal interdependencies, is then developed for analysis and design of CIM. The methodology is intended for decomposition of large-scale systems into a series of independent, multi-objective problems; we develop and illustrate an interactive approach to solve the decomposed problems and resolve the vertical and horizontal interdependencies. Finally, an approach for the selection of hardware/software systems for CIM is discussed and illustrated. Several examples are presented.