One unit of A is composed of two units of B and three units of C. Each B is composed of one unit of F.C is made of one unit of D, one unit of E, and two units of F. Items A, B, C, and D have 28, 40, 36, and 25 units of on-hand inventory. Items A, B, and Cuse lot-for-lot (L4L) as their lot-sizing technique, while D, E, and F require multiples of 62, 110, and 90, respectively, to be purchased. B has scheduled receipts of 15 units in Period 1. No other scheduled receipts exist. Lead times are one period for Items A, B, and D, and two periods for Items C, E, and F. Gross requirements for A are 15 units in Period 1, 12 units in Period 2, 50 units in Period 6, and 50 units in Period 8. Find the planned order releases for all items. (Leave no cells blank - be certain to enter "0" wherever required.)

Practical Management Science
6th Edition
ISBN:9781337406659
Author:WINSTON, Wayne L.
Publisher:WINSTON, Wayne L.
Chapter2: Introduction To Spreadsheet Modeling
Section: Chapter Questions
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**Material Requirements Planning (MRP) Overview**

The following information and table are provided to help you understand the process of Material Requirements Planning (MRP) for a multi-component production system. This exercise involves calculating planned order releases for different items across multiple periods.

**Problem Description:**

- **Product Composition:**
  - One unit of A is composed of two units of B and three units of C.
  - Each B is composed of one unit of F.
  - C is made of one unit of D, one unit of E, and two units of F.

- **Inventory and Lot-Sizing Information:**
  - Items A, B, and C have on-hand inventories of 28, 40, and 36 units, respectively.
  - Items A, B, and C use lot-for-lot (L4L) as their lot-sizing technique.
  - Items D, E, and F require multiple units of 62, 110, and 90, respectively, to be purchased.

- **Scheduled Receipts and Lead Times:**
  - B has scheduled receipts of 15 units in Period 1.
  - No scheduled receipts exist for other items.
  - Lead times are one period for Items A, B, and D, and two periods for Items C, E, and F.

- **Gross Requirements:**
  - A: 15 units in Period 1, 12 units in Period 2, 50 units in Period 6, and 50 units in Period 8.

**Table Explanation:**

The table is divided by items (A, B, C, D) and contains several key headings for each period:

- **Gross Requirements**: The total demand for the item in that period.
- **Scheduled Receipts**: Items which are due to be received in that period.
- **Projected Available Balance**: Expected inventory level at the end of the period considering scheduled receipts and the net requirements.
- **Net Requirements**: The actual quantity needed to be produced or ordered in that period.
- **Planned Order Receipts**: When you plan to receive the orders previously placed.
- **Planned Order Releases**: When you need to place orders to meet future demand.

The table extends over 8 periods, and you are tasked to fill in the planned order releases for all items, ensuring no cells are left blank (enter "0" where no order is needed).

Please carefully analyze
Transcribed Image Text:**Material Requirements Planning (MRP) Overview** The following information and table are provided to help you understand the process of Material Requirements Planning (MRP) for a multi-component production system. This exercise involves calculating planned order releases for different items across multiple periods. **Problem Description:** - **Product Composition:** - One unit of A is composed of two units of B and three units of C. - Each B is composed of one unit of F. - C is made of one unit of D, one unit of E, and two units of F. - **Inventory and Lot-Sizing Information:** - Items A, B, and C have on-hand inventories of 28, 40, and 36 units, respectively. - Items A, B, and C use lot-for-lot (L4L) as their lot-sizing technique. - Items D, E, and F require multiple units of 62, 110, and 90, respectively, to be purchased. - **Scheduled Receipts and Lead Times:** - B has scheduled receipts of 15 units in Period 1. - No scheduled receipts exist for other items. - Lead times are one period for Items A, B, and D, and two periods for Items C, E, and F. - **Gross Requirements:** - A: 15 units in Period 1, 12 units in Period 2, 50 units in Period 6, and 50 units in Period 8. **Table Explanation:** The table is divided by items (A, B, C, D) and contains several key headings for each period: - **Gross Requirements**: The total demand for the item in that period. - **Scheduled Receipts**: Items which are due to be received in that period. - **Projected Available Balance**: Expected inventory level at the end of the period considering scheduled receipts and the net requirements. - **Net Requirements**: The actual quantity needed to be produced or ordered in that period. - **Planned Order Receipts**: When you plan to receive the orders previously placed. - **Planned Order Releases**: When you need to place orders to meet future demand. The table extends over 8 periods, and you are tasked to fill in the planned order releases for all items, ensuring no cells are left blank (enter "0" where no order is needed). Please carefully analyze
**Material Requirements Planning (MRP) Table Explanation**

This table is used for Material Requirements Planning (MRP) and consists of two sections, one for Item E and one for Item F. Each section includes various elements that help in planning inventory and production schedules.

### Item E

- **Gross Requirements**: Represents the total demand for the item.
- **Scheduled Receipts**: Orders that are due to be received at specific times.
- **Projected Available Balance (OH = 0)**: The expected inventory level, initialized at zero.
- **Net Requirements (LT = 2)**: The actual amount needed, considering scheduled receipts and inventory.
- **Planned Order Receipts (SS = 0)**: Orders that are planned and expected to be received within a lead time of 2 periods.
- **Planned Order Releases (Q = 110)**: When orders are planned to be released, with a lot size quantity of 110.

### Item F

- **Gross Requirements**: Similar structure for demand as Item E.
- **Scheduled Receipts**: Incoming orders scheduled to be received.
- **Projected Available Balance (OH = 0)**: Inventory level, also starting from zero.
- **Net Requirements (LT = 2)**: The necessary amount needed, after considering incoming inventory.
- **Planned Order Receipts (SS = 0)**: Orders expected based on a lead time of 2 periods.
- **Planned Order Releases (Q = 90)**: Orders planned to be released, with a lot size quantity of 90.

### Diagram Explanation

The diagram consists of multiple empty columns represented by arrows, indicating periods over which these measurements and actions are planned. Each heading specifies a different aspect of the item's inventory and order planning process.

This layout facilitates the planning and scheduling of inventory management by providing a structured approach to determining when orders are needed and in what quantities, based on forecasted demands and current inventory levels.
Transcribed Image Text:**Material Requirements Planning (MRP) Table Explanation** This table is used for Material Requirements Planning (MRP) and consists of two sections, one for Item E and one for Item F. Each section includes various elements that help in planning inventory and production schedules. ### Item E - **Gross Requirements**: Represents the total demand for the item. - **Scheduled Receipts**: Orders that are due to be received at specific times. - **Projected Available Balance (OH = 0)**: The expected inventory level, initialized at zero. - **Net Requirements (LT = 2)**: The actual amount needed, considering scheduled receipts and inventory. - **Planned Order Receipts (SS = 0)**: Orders that are planned and expected to be received within a lead time of 2 periods. - **Planned Order Releases (Q = 110)**: When orders are planned to be released, with a lot size quantity of 110. ### Item F - **Gross Requirements**: Similar structure for demand as Item E. - **Scheduled Receipts**: Incoming orders scheduled to be received. - **Projected Available Balance (OH = 0)**: Inventory level, also starting from zero. - **Net Requirements (LT = 2)**: The necessary amount needed, after considering incoming inventory. - **Planned Order Receipts (SS = 0)**: Orders expected based on a lead time of 2 periods. - **Planned Order Releases (Q = 90)**: Orders planned to be released, with a lot size quantity of 90. ### Diagram Explanation The diagram consists of multiple empty columns represented by arrows, indicating periods over which these measurements and actions are planned. Each heading specifies a different aspect of the item's inventory and order planning process. This layout facilitates the planning and scheduling of inventory management by providing a structured approach to determining when orders are needed and in what quantities, based on forecasted demands and current inventory levels.
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