Describe the conditions under which MRP is most appropriatefor lowerlevel items encountered with MRP Student Slides... Dependent demand Demand for items that are subassemblies or com
Trang 1MRP and ERP
Trang 21. Describe the conditions under which MRP is most appropriate
for lowerlevel items
encountered with MRP
Student Slides
Trang 3 Dependent demand
Demand for items that are subassemblies or component
parts to be used in the production of finished goods.
Dependent demand tends to be sporadic or “lumpy”
Large quantities are used at specific points in time with little or
no usage at other times
Student Slides
Trang 4 Material requirements planning (MRP):
A computerbased information system that translates master
schedule requirements for end items into timephased
requirements for subassemblies, components, and raw
materials.
The MRP is designed to answer three questions:
1. What is needed?
2. How much is needed?
3. When is it needed?
Student Slides
Trang 5Student Slides
Trang 6by the master schedule and “explodes” them into time
phased requirements for assemblies, parts, and raw
materials offset by lead times
Student Slides
Trang 7 The MRP is based on the product structure tree diagram
Requirements are determined level by level, beginning with the
end item and working down the tree
determining the timing and quantity of the “children” items directly
below it.
and so on
Student Slides