Material Requirements Planning What to order How much

物料需求計劃 (Material Requirements Planning) What to order How much to order When to schedule delivery Note: MRP用來規劃所有資源的未來需求.

物料需求計劃 (Material Requirements Planning) MPS BOM Inventory Records 令 MRP 請購單

物料需求計劃 (Material Requirements Planning) • Bill of Material Structure 1. 彙總式 (Summarized Parts List) 2. 多階式 (Multilevel Bill) 3. 單階式 (Single-Level Bill) 4. 規劃料表 (Planning Bill)

物料需求計劃 (Material Requirements Planning) • 彙總式 (Summarized Parts List) 項目 A Product Tree

物料需求計劃 (Material Requirements Planning) • 多階式 (Multilevel Bill)

物料需求計劃 (Material Requirements Planning) • 單階式 (Single-Level Bill)

物料需求計劃 (Material Requirements Planning) • 規劃料表 (Planning Bill) - Used to simplify forecasting (MPS, MRP) 100% Leg A 40% Side A 55% Top A 45% Leg B 35% Side B 30% Top B 30% Leg C 25% Side C 15% Top C 25%

物料需求計劃 (Material Requirements Planning) • 與 BOM 相關表格 用途表 (Where-Used Report) Where-used reports give the same information as a BOM, but the where-used report gives the parents for a component whereas the BOM gives the components for a parent. 溯源報表 (Pegging Report) A pegging report is similar to where-used report. However, the pegging report shows only those parents for which there is an existing requirement.

物料需求計劃 (Material Requirements Planning) • 溯源報表 (Pegging Report) Pegged Requirements Source of Requirements

物料需求計劃 (Material Requirements Planning) • MRP Process Exploding and Offsetting Gross and Net Requirements Releasing Orders

物料需求計劃 (Material Requirements Planning) • Exploding and Offsetting - Example (MPS) Planned Order

物料需求計劃 (Material Requirements Planning) • Gross and Net Requirement - Example

物料需求計劃 (Material Requirements Planning) • Released Order - Scheduled Receipt The scheduled receipts row shows the quantities ordered and when they are expected to be completed and available. Note: Net Requirement = Gross Requirement - Scheduled Receipts - Available Inventory

物料需求計劃 (Material Requirements Planning) Fundamental Wrong with MRP Flawed Model Note: Lead times are not affected by the status of the plant

MRP II Hierarchy Demand Forecast Resource Planning Rough-Cut Capacity Planning Long-Range Planning Aggregate Planning MPS Intermediate-Range Planning BOM Inventory Status MRP Job Pool Job Release Job Dispatching Capacity Requirement Planning Routing Data Short-Term Planning

產能需求規劃 (Capacity Requirement Planning) Shop Calendar Planned Order Releases CRP Work Center Load Report Open Orders Routing Data Capacity and lead Time for Process Centers

產能需求規劃 (Capacity Requirement Planning) Part Name: Gear Shaft Drawing Number: D 123 X Operation No. 10 20 30 40 50 Work Center 12 14 17 03 Stores Part Number: SG 123 S/U Time (Standard Hours) 1. 50 0. 30 0. 45 Routing Data Run Time/Piece (Standard Hours) 0. 25 0. 05 0. 10 Operation Turn Shaft Mill Slot Drill Hole Grind Inventory

產能需求規劃 (Capacity Requirement Planning) Work Center File

產能需求規劃 (Capacity Requirement Planning) Ex: A work center has the following open orders and planned orders for week 20. Calculate the total standard time required (load) on this work center in week 20. Order 222 is already in progress, and there are 100 remaining to run. Order Quantity Setup Time Run Time Released Orders 222 333 100 150 0 1. 5 0. 2 Planned Orders 444 555 200 3 2. 5 0. 25 0. 15

產能需求規劃 (Capacity Requirement Planning) Work Center Load Report