ERP: Mfg Plan’g and Control(MPC) 에 근거하여

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Master Production Scheduling

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MPS ActivityMPS Activity

Contents for Master Production Schedule

MPS TechniquesMPS Techniques

Bill of Material Structures for MPSBill of Material Structures for MPS

The Final Assembly ScheduleThe Final Assembly Schedule

MPS Scheduler and StabilityMPS Scheduler and Stability

Company ExamplesCompany Examples

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Recall what we did for SOP

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Convert SOP into a specific manufacturing schedule

The role of SOP is to balance Supply and Demand Volume, while the MPS specifies the Mix and Volume of the output

Constructing and Updating the MPS record rolling through Time

A statement of future planned output, taking into account of the capacity limitations, production cost, and SOP

MPS Activity

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Make to Stock:

-End Item Numbers or Groupings( Consolidated Item Numbers)

Make to Order or Engineer to Order:

-Particular End Item or Real Customer Order

Assemble to Order:

-Large number of end item possibilities makes exact end-item configurations extremely difficult

-Typically doesn’t develop a MPS for end items, instead stated in

Planning Bills of Materials

-For option parts, MPS incorporates buffering or hedging

Business Environment and Choice of MPS Unit

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Rough Cut Capacity Plan: Early Discovery of Bottleneck Resource

MPS Activity: related MPC functions

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MPS Techniques: leveling vs chase strategy

Available Row refers to the available quantity at the end of the period (10+20 – 5 = 25)

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MPS Techniques: rolling through time

Using new forecasts and lot sizing technique

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MPS Techniques: order promising

Available To Promise(ATP) on week 1 is in the bottom (20 – (5 +3+2)= 25)

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MPS Techniques: order promising- Mitel Corp.

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A fundamental rule: a company should have one and only one set of bills of materials or product structure records

However there are times when it is beneficial to have different structures that are based on the way it is sold

with cost of maintaining different structures

They are called the Planning Bill: famous among them are Modular Bill and Super Bill (of Materials)

Modular bill of material: master scheduling may be easier but

order entry tasks are more complex since each option must be evaluated

Super bill: average end item

Bill of Material Structures for MPS

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Bill of Material Structures for MPS: Modular Bill

MPS focuses on Waist Part of the Hourglass Structure

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Bill of Material Structures for MPS: Super Bill

The company produces 3, 4, 5 HP final products with 2 drive train options, and 3 brand name options(Taylor, …)

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The Final Assembly Schedule

MPS represents an anticipated build schedule, but FAS is the actual build schedule

MPS and FAS are different and the distinction is most clearly

seen in Assemble to Order environment

Even in MTS environment, a single level bill of materials is maintained for each end item

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The firm planned order concept

Supply 가능한 기간이 짧고 Backlog 기간이 길수록 MPS 스케쥴러의 역할이 고될 것이다 .

Fast Man simulation software

MPS Database 에 대한 룰을 확실히 규정짓는 것이 중요하다

Firm Planned Order: Frozen, Customer Promise, Manual Forecast

MPS Scheduler and Stability

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Company Examples