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ISQA 407 Introduction to Global Supply & Logistics Management Winter 2012

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ISQA 407 Introduction to Global Supply & Logistics Management Winter 2012. Portland State University. Agenda. Quick review of last class Production Inventory Systems MRP / ERP EOQ Presentation on Kropf Q&A. Production:. Product focus: Customer centric Flexible Integrated.

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Presentation Transcript
slide1
ISQA 407

Introduction to Global Supply & Logistics Management

Winter 2012

Portland State University

agenda
Agenda
  • Quick review of last class
  • Production
  • Inventory
  • Systems
  • MRP / ERP
  • EOQ
  • Presentation on Kropf
  • Q&A
production
Production:
  • Product focus:
  • Customer centric
  • Flexible
  • Integrated
  • Functional focus:
  • Few operations
  • Efficiency oriented
  • Postponement
  • DFx
definitions in production
Definitions in production
  • Routing:
    • The operations to be performed, their sequence, the work centers visited, & the time standards
  • Bottleneck:
    • A resource whose capacity is less than the demand placed on it
  • Due date:
    • When the job is supposed to be finished
  • Slack:
    • The time that a job can be delayed & still finish by its due date
  • Queue:
    • A waiting line
definitions in production1
Definitions in production
  • Stock keeping Unit: a product given a part number and productized
  • Job Lot: All parts stored and pulled by product
  • Cross-docking: Distribution centers / spoke & wheel.
high volume low mix operations
High Volume / Low Mix Operations
  • High volume flow operations generally have fixed routings
  • Bottlenecks are easily identified
  • Commonly use line-balancing to design the process around the required tasks
    • Examples?
low volume high mix operations
Low Volume / High Mix Operations
  • Low volume job shop operations are designed for flexibility.
  • Each product or service may have its own routing (scheduling is much more difficult)
  • Bottlenecks move around depending upon the products being produced at any given time
    • Examples?
inventory
Inventory
  • Is it an asset or a liability?
  • Why?
inventory1
Inventory:
  • Cycle inventory: Turns – How much is needed?
      • Carry costs
      • Obsolescence
      • flexibility
  • Safety Stock:
      • Buffer against risk
      • Costs?
  • Seasonal Inventory
      • Smoothing
      • Examples?
location transport
Location & Transport
  • Infrastructure, customers, costs
  • Water: Low cost, lengthy
  • Rail: Low cost, lengthy
  • Trucks: quick, flexible, costly with fuel
  • Air: High cost, quick
  • General Rule: Higher cost of product, emphasize flexibility over costs. Also consider life cycles.
information
Information
  • Daily – MRP that coordinates production, inventory, & transport
  • Forecasting & Planning – ERP that includes forecast, capacity, customer orders, etc
material requirements planning
Material Requirements Planning
  • Materials requirements planning (MRP) is the logic for determining the number of parts, components, and materials needed to produce a product.
  • MRP provides time scheduling information specifying when each of the materials, parts, and components should be ordered or produced.
  • Dependent demand drives MRP.
  • MRP is a software system.
system wide erp
System wide ERP

ERP software applications used to manage product planning, parts purchasing, inventories, interacting with suppliers, providing customer service, and tracking orders. ERP can also include application modules for the finance and human resources aspects of a business

slide14
Four + One Categories of SCM Operations (p. 45)

Plan

P1 Plan Supply Chain

P4 Plan Deliver

P5 Plan Returns

P3 Plan Make

P2 Plan Source

Source

Make

Deliver

M1 Make-to-Stock or order

S1 Source Stocked Products

D1 Deliver Products

Suppliers

S2 Procurement

M2 DFx

D2 Order Management

Customers

M3 production schedule

S3 Credit / LOI / LOC

D3 Mode of transport

Return do to Warranty

Return do to sustainability

Enable Closed Loop Supply Chain

plan demand forecasting methods
Plan – Demand Forecasting Methods
  • Sales and Operating Plan process
  • Qualitative – Personal feelings
  • Casual – One effect has outcome on another
  • Time series – Historical data
  • Simulation – causal + time (elasticity)
  • Four major variables: supply, demand, Product type, competition
objectives aggregate planning
Objectives – Aggregate Planning

Minimize Costs/Maximize Profits

Maximize Customer Service

Minimize Inventory Investment

Minimize Changes in Production Rates

Minimize Changes in Work-force Levels

Maximize Utilization of Plant and Equipment

methods of aggregate planning
Methods of Aggregate Planning
  • Production capacity = demand; highly efficient 85% utilization
  • Various levels of capacity = demand; incremental approach
  • Inventory & Backlog = Demand; used when long lead-times or need for linear output
  • Postponement – part of DFx; cost structure and life cycles high and short.
slide18
Inventory - EOQCycle, safety, or seasonal?Strategy with Aggregate Plan?Order costs and inventory cost can be highLot size efficiency (LTL vs: FT, set-up times, JIT, etc…
basic eoq model
Basic EOQ Model

Important assumptions

Demand is known, constant, and independent

Lead time is known and constant

Receipt of inventory is instantaneous and complete

Quantity discounts are not possible

Only variable costs are setup and holding

Stockouts can be completely avoided

an eoq example
2DS

H

Q* =

2(27)(100)

1.00

Q* =

= 5,400 = 73.48 units

An EOQ Example

Determine optimal number of items to order

D = 27 units per week

S = $100 per order

H = $1.00 per unit per week

procurement
Procurement
  • Purchasing: two types
    • MRO – Maintenance, repair, and operations
    • Direct – strategic procurement of components
  • Sourcing: Selection of a supplier including:TQRDCE
  • Contracts: For long term relationships
  • AR/AP: credit policies (LOI, LOC, MOU, PO)
responsibilities of sourcing professionals
Responsibilities of Sourcing Professionals
  • Beyond just continuity of supply..
    • Labor rights
      • Child labor
      • Working conditions
      • Benefits and hours
      • Employee safety considerations
    • Environmental considerations
      • Pollution/emissions/utilization of scare or protected resources
      • Recycling/Reclaim
      • Utilization of hazardous materials (IE: ozone depleting substances, lead, etc.)
      • Who is responsible? What is produced via mfg process? What is included in the finished product? Have we disclosed to end customer?
  • What is the impact to the company? (CSRs, tracking. Expensive)
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