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MATERIAL REQUIREMENT (challenges (Integrity of the data. If there are any…
MATERIAL REQUIREMENT
challenges
Integrity of the data. If there are any errors in the inventory data, the bill of materials (commonly referred to as 'BOM') data, or the master production schedule, then the output data will also be incorrect
Systems require that the user specify how long it will take for a factory to make a product from its component parts
A manufacturer may have factories in different cities or even countries. It is not good for an MRP system to say that we do not need to order some material, because we have plenty of it thousands of miles away.
Production may be in progress for some part, whose design gets changed, with customer orders in the system for both the old design, and the new one, concurrently.
The other major drawback of MRP is that it fails to account for capacity in its calculations. This means it will give results that are impossible to implement due to manpower, machine or supplier capacity constraints
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what is MRP
Material Requirements Planning (MRP) is a computer-based production planning and inventory
control system
MRP is concerned with both production scheduling and inventory control. It is
a material control system that attempts to keep adequate inventory levels to assure that required
materials are available when needed
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objective MRP
Ensure the availability of materials, components, and products for planned production and for
customer delivery,
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Plan manufacturing activities, delivery schedules, and purchasing activities.
capacity
- Plan for a complete load
- Plan for an accurate load
- Plan for an adequate time to view future load
inventory
- Order the right part
- Order the right quantity
- Order at the right time
priority
- Order with the right due date
- Keep the due date valid