Prepare an MPS table like that shown in Figure 12-11 for the following situation. The forecast for each of the next four weeks is 70 units. The starting inventory is zero. The MPS rule is to schedule production if the projected inventory on hand will be negative. The production lot size is 100 units. The following table shows customer (committed) orders. Week Customer Orders 1 80 2 50 3 30 4 10 Calculate the available-to-promise (ATP) quantities for each period. (Do not leave any empty spaces; input a "0" wherever it is required.) June 1 2 3 4 Forecast 70 70 70 70 Committed Projected on hand (min = 0) 0 Produce (lot size = 100) Available-to-promise
Question
Prepare an MPS table like that shown in Figure 12-11 for the following situation. The forecast for each of the next four weeks is 70 units. The starting inventory is zero. The MPS rule is to schedule production if the projected inventory on hand will be negative. The production lot size is 100 units. The following table shows customer (committed) orders. Week Customer Orders 1 80 2 50 3 30 4 10 Calculate the available-to-promise (ATP) quantities for each period. (Do not leave any empty spaces; input a "0" wherever it is required.) June 1 2 3 4 Forecast 70 70 70 70 Committed Projected on hand (min = 0) 0 Produce (lot size = 100) Available-to-promise
Solution
Entendido, procederé a resolver el problema paso a paso.
-
Datos iniciales:
- Pronóstico semanal: 70 unidades.
- Inventario inicial: 0 unidades.
- Tamaño del lote de producción: 100 unidades.
- Regla MPS: Programar producción si el inventario proyectado será negativo.
- Pedidos de clientes:
- Semana 1: 80 unidades.
- Semana 2: 50 unidades.
- Semana 3: 30 unidades.
- Semana 4: 10 unidades.
-
Tabla inicial:
| Semana | Pronóstico | Pedidos de clientes | Inventario proyectado | Producción | ATP |
|---|---|---|---|---|---|
| 1 | 70 | 80 | 0 | 0 | 0 |
| 2 | 70 | 50 | 0 | 0 | 0 |
| 3 | 70 | 30 | 0 | 0 | 0 |
| 4 | 70 | 10 | 0 | 0 | 0 |
- Cálculo del inventario proyectado y producción:
-
Semana 1:
- Inventario proyectado = Inventario inicial + Producción - Pedidos de clientes
- Inventario proyectado = 0 + 0 - 80 = -80 (negativo, se programa producción)
- Producción = 100 unidades
- Inventario proyectado = 0 + 100 - 80 = 20 unidades
-
Semana 2:
- Inventario proyectado = Inventario anterior + Producción - Pedidos de clientes
- Inventario proyectado = 20 + 0 - 50 = -30 (negativo, se programa producción)
- Producción = 100 unidades
- Inventario proyectado = 20 + 100 - 50 = 70 unidades
-
Semana 3:
- Inventario proyectado = Inventario anterior + Producción - Pedidos de clientes
- Inventario proyectado = 70 + 0 - 30 = 40 unidades (no se programa producción)
-
Semana 4:
- Inventario proyectado = Inventario anterior + Producción - Pedidos de clientes
- Inventario proyectado = 40 + 0 - 10 = 30 unidades (no se programa producción)
- Cálculo del ATP (Available-to-Promise):
-
Semana 1:
- ATP = Producción - Pedidos de clientes hasta la próxima producción
- ATP = 100 - 80 = 20 unidades
-
Semana 2:
- ATP = Producción - Pedidos de clientes hasta la próxima producción
- ATP = 100 - 50 = 50 unidades
-
Semana 3:
- ATP = Inventario proyectado - Pedidos de clientes hasta la próxima producción
- ATP = 40 - 30 = 10 unidades
-
Semana 4:
- ATP = Inventario proyectado - Pedidos de clientes hasta la próxima producción
- ATP = 30 - 10 = 20 unidades
- Tabla final:
| Semana | Pronóstico | Pedidos de clientes | Inventario proyectado | Producción | ATP |
|---|---|---|---|---|---|
| 1 | 70 | 80 | 20 | 100 | 20 |
| 2 | 70 | 50 | 70 | 100 | 50 |
| 3 | 70 | 30 | 40 | 0 | 10 |
| 4 | 70 | 10 | 30 | 0 | 20 |
Espero que esto resuelva tu pregunta.
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