Project72 MaterialRequirementsPlanning(MRP)

8/9/2019 Project72 MaterialRequirementsPlanning(MRP)

1/4

Case Study 72 Material Requirements Planning (MRP)

Material Requirements Planning (MRP)

Problem Description

Material requirement planning (MRP) is a key element in managing resources in a

manufacturing environment. MRP systems ere developed to !elp companies manage

dependent demand inventory and sc!edule replenis!ment orders. MRP systems !ave

proven to "e "eneficial to many companies.

#!e aim of t!is pro$ect is to "uild a support system t!at ould generate material

requirements plans for a manufacturing company. #!is support system s!ould "e "uild using

t!e principles of MRP systems. %e use a simple e&ample to s!o !o MRP systems ork'

!oever to learn more a"out t!ese systems e refer t!e students to ra$eski and Rit*man

(2++2) and ,a!mias (2+++).

MRP System

-n MRP system translates t!e master production sc!edule (MPS) "ill of materials (/M)and inventory records into a material requirement plan t!at specifies t!e replenis!ment

sc!edules of all t!e su"assem"lies components and ra materials needed for t!e final

product. %e illustrate t!e inputs of t!e system and t!e final MRP plans using an e&ample.

%e consider a manufacturing company t!at produces c!airs. %e present t!e /M MPS

and MRP plans for t!e ladder0"ack c!airs produced "y t!is company (ra$eski and

Rit*man 2++2).

MPS presents t!e lot si*e and due date for t!e final products.

1igure 3 MPS for a 1amily of C!airs.

#!e /M presents t!e components required to manufacture t!e final product t!e parent0

component relations!ips and t!e usage quantities. 4nventory records present an item5s lot0

si*e policy lead0time and ot!er time0p!ased data. elo e present t!e /M MPS

inventory records and t!e material requirements plan for a 6adder0ack C!air.

72


2/4


1igure 23 /M for a 6adder0ack C!air.

1igure 3 4nventory Records for t!e Seat Su"assem"ly of t!e 6adder0ack C!air.

1igure 83 Part of MRP Plans for t!e 6adder0ack C!air.


3/4


Excel Spreadsheets

. uild a spreads!eet t!at presents for eac! final product t!e name and quantity of all t!e

components used to produce t!e product.

2. uild a spreads!eet t!at presents for eac! item t!e amount on !and and sc!eduled

receipts.

. uild a spreads!eet t!at presents for eac! final product t!e amount and t!e due dates

promised to customers.

User Interface

. uild a elcome form.

2. uild a form titled 9ill of Materials.: #!e folloing are suggestions to !elp you design

t!is form. 4nsert a com"o "o& titled 9C!oose a Product.: #!e com"o "o& allos t!e user

to select one of t!e final products listed. ;pon selection a list of t!e components used

to produce t!e product is displayed. #!e user s!ould "e a"le to select more t!an one

component from t!e list as more t!an one component may "e used to produce t!e final

product. 4nclude to command "uttons in t!is frame one titled 9Continue: and t!e ot!er

9Su"mit.: 4f t!e user clicks on t!e 9Continue: command "utton list "o&es appear one for

eac! component. #!e user selects for eac! item t!e corresponding components and

su"mits t!e information. #!e same process continues until e !ave defined all parent0

component relations!ips of t!e final product. 4f t!e user clicks on t!e 9Su"mit: command

"utton t!en a form titled 9. uild a form titled 9See an


4/4


@esign a logo for t!is pro$ect. 4nsert t!is logo in t!e forms created a"ove. Pick a "ackground

color and a font color for t!e forms created. 4nclude t!e folloing in t!e forms created3 record

navigation command "uttons record operations command "uttons and form operations

command "uttons as needed.

Reports

. Report t!e /M for t!e final product(s) produced "y t!e company.

2. Report t!e MPS for t!e final product(s) produced "y t!e company.

. Report t!e MRP plans created using t!e t!ree different lot0si*ing rules.

Reference

,a!mias S. 9Production and /perations -nalysis it! Student C@0Rom.: 8 t!

Project72 MaterialRequirementsPlanning(MRP)

Documents

Transcript of Project72 MaterialRequirementsPlanning(MRP)