ERP: Mfg Plan’g and Control(MPC) 에 근거하여 SNU MAI LAB Master Production Scheduling

SNU MAI LAB/ 15 1 MPS Activity Contents for Master Production Schedule MPS Techniques Bill of Material Structures for MPS The Final Assembly Schedule MPS Scheduler and Stability Company Examples

SNU MAI LAB/ 15 2 Recall what we did for SOP

SNU MAI LAB/ 15 3  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

SNU MAI LAB/ 15 4  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

SNU MAI LAB/ 15 5  Rough Cut Capacity Plan: Early Discovery of Bottleneck Resource MPS Activity: related MPC functions

SNU MAI LAB/ 15 6 MPS Techniques: leveling vs chase strategy  Available Row refers to the available quantity at the end of the period (10+20 – 5 = 25)

SNU MAI LAB/ 15 7 MPS Techniques: rolling through time  Using new forecasts and lot sizing technique

SNU MAI LAB/ 15 8 MPS Techniques: order promising  Available To Promise(ATP) on week 1 is in the bottom (20 – (5 +3+2)= 25)

SNU MAI LAB/ 15 9 MPS Techniques: order promising- Mitel Corp.

SNU MAI LAB/  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

SNU MAI LAB/ Bill of Material Structures for MPS: Modular Bill  MPS focuses on Waist Part of the Hourglass Structure

SNU MAI LAB/ 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, …)

SNU MAI LAB/ 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

SNU MAI LAB/  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

SNU MAI LAB/ Company Examples