Object-oriented domain analysis for flexible manufacturing systems

Flexible manufacturing systems (FMSs) have received a great deal of attention over the last decade. Currently there is substantial research addressing various problems in the FMS domain, including design, planning, scheduling, and control. A number of different modeling techniques have been employed to find optimal solutions to each problem in a static environment. Differences in assumptions, constraints, and solution techniques employed when tackling individual FMS problems make integration difficult. However, for effective functioning of the overall system, it becomes necessary to view them as related problems. This paper proposes an alternative framework for modeling the FMS domain, wherein problems can be tackled in an integrated manner. A comprehensive object-oriented model for FMS that covers parts, facilities, and activities is described. Explicit capture of problem interdependences in the model permits dynamic problem solving. Procedures for addressing different FMS problems are outlined, and a detailed specification for assignment of parts to cells is provided. The model is extensible to other FMS problems. The use of an object-oriented model permits effective monitoring of system performance, thereby providing opportunities for incremental system enhancement and learning. © 1997 John Wiley & Sons, Inc.