CAPM Definitions

Question 1

BOM

Answer 1

Bill of materials

Lists all sub-assemblies, parts and raw materials that go into a parent assembly, showing quantity of each required.

Question 2

MPS

Answer 2

Master Production Schedule
The build schedule that drives material requirements planning expressed in terms of products, their quantities and due dates.
Takes into account firm order and forecasts as well as material availability, capacity etc.

Question 3

MRP

Answer 3

Material Requirement Planning
Determines the quantities and timing for the manufacturing/ordering of all raw materials, components and assemblies.
It achieves this by taking items listed in MPS, exploding their bills of materials and offsetting their lead times.
Stock level subtracted by gross requirements calculate net requirements.

Question 4

Backward Scheduling

Answer 4

Used to calculate operation start and due dates.
By, working backwards from an order due date a schedule is developed by determining the required start date and/or due date for each operation

Question 5

Forward Scheduling

Answer 5

Starts from a known start date and computes the completion date for an order by summing the individual activity times.

Question 6

Combined Backward & Forward Scheduling

Answer 6

To reduce WIP it is possible to combine backward and forward schedules by forward scheduling the longest lead time to determine the earliest completion date and then backward scheduling the rest of the items from that completion date.
A small amount of slack between operations not on the critical path will increase WIP but should make system more robust.