Dispatching may be defined as setting production activities in motion through the release of orders (work order, shop order) and instructions in accordance with the previously planned time schedules and routings.
Dispatching also provides a means for comparing actual progress with planned production progress. Dispatching functions include;
1.Providing movement of raw materials from stores to the first operation and from one operation to the next operation till all the operations are carried out.
2.Collecting tools, jigs and fixtures from tool stores and issuing them to the user department or worker.
3.Issuing job orders authorizing operations in accordance with dates and times as indicated in schedules or machine loading charts.
4.Issue of drawings, specifications, route cards, material requisitions and tool requisitions to the user department.
5.Obtaining inspection schedules and issuing them to the inspection section.
6.Internal materials handling and movement of materials to the inspection area after completing the operation, moving the materials to the next operation center after inspection, and movement of completed parts to holding stores.
7.Returning jigs and fixtures and tools to stores after use.
Expediting or progressing ensures that, the work is carried out as per the plan and that the delivery schedules are met.
Progressing includes activities such as status reporting, attending to bottlenecks or holdups in production and removing the same ,controlling variations or deviations from planned performance levels following up and monitoring progress of work through all stages of production, coordinating with purchase, stores, tool room and maintenance departments and modifying the production plans and re plan if necessary.
Need for expediting may arise due to the following reasons
1. Delay in supply of materials.
2. Excessive absenteeism.
3. Changes in design specifications.
4. Changes in delivery schedules initiated by customers.
5. Break down of machines or tools, jigs and fixtures.
6. Errors in design drawings and process plans.