11/10: MRP continued.

1
11/10 MRP continued.

• Review Material Requirements Planning
• Need to know
• Master Schedule
• Bill of Materials
• Lead times
• Due date.
• Go to spreadsheet.

2
Group Exercise

• You make the PalmPointer, a handy personal
  digital assistant. You have received an order
  for 200 units to be shipped in 12 minutes. A
  PalmPointer is made of a LCD screen, 4 buttons, 1
  toggle button, and a motherboard. The
  motherboard is made of 3 processors, 2 clock
  batteries, and a circuit board. Assembly time
  for the assemblies are as follows
• PalmPointer 2 minutes LCD screen 1
• buttons 2 toggle button 3
• motherboard 6 processors 2
• batteries 1 circuit board 3
• Create an MRP schedule to determine when to begin
  assembling each component.

3
Lot sizing

• lot-for-lot (L4L) order exactly the amount you
  want.
• Lot req. sized order in certain amounts (ex. a
  dozen eggs).

4
Scheduled Receipts

• Units (of any component) that you have already
  scheduled to come in at a particular time.

5
On-Hand Inventory

• Units (of any component) that you already have in
  stock (at the beginning).

6
Gross Req. vs. Net Req.

• Gross required is the total amount of a component
  you need.
• Net required is (Gross)
• - (On-hand inventory)
• - (Scheduled receipts)

7
Planned Order Receipts

• What you PLAN to RECEIVE what you ORDERED.
• What you PLAN to RELEASE in an ORDER.

Planned Order Releases
8
New MRP Layout

• 1 2 3
• Gross Requirements
• Scheduled Receipts
• On-Hand Inventory
• Net Requirements
• Planned Order Receipt
• Planned Order Release

Part A LT1 2 Req. L4L
9
Group Exercise

• You have to ship an order for 200 PalmPointers in
  12 hours. A PalmPointer (2 h) is made of a LCD
  screen (1 h), 4 buttons (2 h), 1 toggle button (3
  h), and a motherboard (6 h). The motherboard is
  made of 3 processors (2 h), 2 clock batteries (1
  h), and a circuit board (3 h).
• You already have 1000 buttons and 50 motherboards
  on hand. You are expecting (by the note that the
  last shift left for you) 50 LCD screens in 6
  hours and 50 motherboards in 4 hours.
• Create an MRP schedule to determine when to begin
  assembling each component.

10
Homework due 11/12

• Handout.