The Procedure of Reaction to Unexpected Events in Scheduling of Manufacturing Systems with Discrete Production Flow

Abstract

Rescheduling, as a process of updating the production schedule is a very important element of production planning and control. The occurrence of events that outdate existing schedule is a typical situation in real manufacturing systems. Correct reaction to them allows maintaining the continuity of production and the value of evaluation indicators at the satisfactory level. The paper presents the general rescheduling procedure including activities taken from the occurrence of a disturbance up to introduction of the revised schedule. The procedure includes following steps: registering and identification of the event parameters, decision-making steps about the need and time for schedule correction, steps of changing the scheduling model, selection of rescheduling method, selection of a set of operations to rescheduling and also steps of the creation, selection, and implementation of the new schedule .