Internal Operations and Inventory Flashcards

A planner wants to validate the master production schedule against key bottleneck resources before running MRP. Which technique is most appropriate?

Answer: Rough-cut capacity planning

Rough-cut capacity planning checks the MPS against critical resources before detailed MRP is run.

Capacity requirements planning (CRP) differs from rough-cut capacity planning mainly because CRP uses which input?

Answer: MRP planned orders and open shop orders with routings

CRP calculates detailed work-center load from MRP planned orders, open orders, and routings.

In drum-buffer-rope scheduling under the theory of constraints, what does the 'drum' represent?

Answer: The pace set by the constraint resource

The drum is the constraint's schedule, which sets the pace for the whole system.

A customer service rep needs to know how many units of an item can be committed to new orders in a given period. Which MPS output answers this?

Answer: Available-to-promise

Available-to-promise is the uncommitted portion of inventory and planned production available for new customer orders.

Inside the demand time fence, the MPS projected available balance is typically calculated using which demand?

Answer: Customer orders only

Inside the demand time fence, forecast is usually ignored and only actual customer orders drive the calculation.

A shortage of a purchased component appears in MRP. Which feature lets the planner trace that requirement back to the parent orders that caused it?

Answer: Pegging

Pegging links component requirements to their sources of demand in higher-level items.

Why does MRP assign a low-level code to each item in the bill of material?

Answer: So each item is netted only once, at its lowest BOM level

Low-level coding delays netting until all gross requirements from every parent are accumulated.