DESIGN OF A COMPUTERIZED SCHEDULING SYSTEM FOR BEST RULE ANALYSIS ANDCONTROL

A Computerized Scheduling System (CSS) for a gear box manufacturing pl ant has been developed to simulate a specific manufacturing facility a nd to analyse conditions that identify bottlenecks during the producti on process. The model, based partly on practical experience and partly on theoretical work, allows the analyst to concentrate on a single en tity (such as a job) and the sequence of events and activities that un dergoes as it ''passes through'' the system. The CSS makes use of actu al company data regarding individual machines and operators, and incor porates interarrival times, job types, tasks for each job, routings fo r the different job types and process time for each job type and speci fic task. Also, the model provides information on output - average tot al delay in queue, average number in queue, average utilization and av erage delay in queue. Although the resultant model was constructed for the application on hand, the principles employed can be extended to i nclude procedures encountered in similar manufacturing environments.