MRP I - Material Requirements Planning
Material Requirements Planning (MRP I: material requirements planning) is a batch-oriented planning process that does not consider production capacity. It deals with the transfer of demand. Management, warehousing, preparation of parts needed in production.
Brief description
The MRP I concept has been around since the 1960s. Here, a fixed production program is taken out. Material requirements are read from customer orders. This means that the primary demand is given by the sales market. The secondary demand is then calculated via the specification solution - only quantities are planned. The MRP I concept is not a planning system, but a data management system.
Benefits
- Automation of manually conducted processing processes
- planning methods work supportively
Disadvantages
- The production plan is no different at low capacity than the disposal plan
- data dependencies of production order volumes are not taken into account
- fixed trial times and scheduled execution times are adopted
- production capacity is not taken into account
- longer execution time
- greater resources
- worse process synchronization
The deficiencies named above cannot be addressed by modern technical implementations (data banks, graphical user surfaces, etc.). APS systems only try to complement the MRP concept and remove its weaknesses on a model basis. A further development of MRP I is MRP II (Manufacturing Resource Planning).
Intralog products: