Ch 1
Work-in-process
Inventory purchased at the beginning of production to be processed into finished goods Usually 1/2 of the final value
Country's source of wealth
manufacturing/production (raw materials aren't useful unless transformed)
Just-in-time concept
-Developed by Toyota and other Japanese companies in 70s -Mutual analysis for cost reduction -Mutual product design -Enhanced information flow -Lead to "lean production"
Delivery Lead Time Strategies
-Engineer-to-order -Make-to-order -Assemble-to-order -Make-to-stock
Operations Management is affected by
-Government:regulation is extensive -Economy:influences demand -Competition:foreign and domestic, internet makes competition fierce -Customers: expect fair price, high quality, delivery lead time, service, and flexibility -Quality: must exceed customer's expectations
Three Elements of Supply Chain
-Physical Supply (raw materials) -Manufacturing, planning, controlling -Physical Distribution
Six major challenges for production control
1. Customers never satisfied 2. Large supply chains mud the managed 3. Short product life cycles 4. Vast amount of data 5. Emphasis on squeezed profit margins 6. More alternatives
Current Supply Chain Concept Issues
1. Flow of materials 2. Flow of information and sharing of information, mostly through the internet 3. Fund transfers New trend- manage recovery, recycling, and reuse of material
Elements of production planning
1. Forecasting 2. Master planning 3. Material requirements planning 4. Capacity planning
Inputs for manufacturing planning and control
1. Product description 2. Process specifications 3. Time 4. Available facilities 5. Quantities required
Primary activities of manufacturing planning and control
1. Production planning 2. Implementation and control 3. Inventory management
Objectives for Profit
1. Provide best customer service 2. Provide lowest production costs 3. Provide lowest inventory investment 4. Provide lowest distribution costs
Metrics give us
1.Control by superiors 2. Reporting of data to superiors and external groups 3. Communication 4. Learning 5. Improvement
Order Qualifiers
A minimum requirement set to be considered a viable competitor in the marketplace
Postponement
A product design strategy that shifts product differentiation closer to the consumer by postponing identity change to the last possible supply chain location Reduces the number of different items in the supply chain, lowering in-process inventory
Metric
A verifiable measure stated in either quantitative or qualitative terms defined with respect to a reference point
Order Winners
Competitive characteristics that persuade a company's customers to choose its products or services. Change over time and are different for different markets.
Design/Demand Information Flow
Customer -> supplier
Engineer-to-order
Customer's specifications require unique engineering design or significant customization. Delivery lead time is long because it includes purchase and design lead time
Product Life Cycle
Introduction -> Growth -> Maturity -> Decline
Performance Measure
Must be quantified and objective and contain at least two parameters
Product/Services Flow
Supplier -> customer
Materials Management
The concept of having one department responsible for the flow of materials, from supplier through production to consumer Objects: 1. Maximize the use of the firm's resources 2. Provide the required level of customer service
Orchestrator/Channel Master
The individual or company that takes the initiative to integrate both the upstream and downstream supply chain, getting members to work cooperatively to lower costs
Make-to-order
The manufacturer does not start to make the product until a customer's order is received. Final product is made from standard items, but may include custom-designed components. Delivery lead time reduced because little design time is required.
Assemble-to-order
The product is made from standard components that the manufacturer can inventory and assemble according to a customer order No design time needed and inventory is held ready for assembly
Make-to-stock
The supplier manufactures the goods and sells from a finished-goods inventory Shortest lead time. Customer has little direct involvement in the product design
Delivery Lead Time
The time from the receipt of an order to the delivery of the product (customer's desire it to be short)
Performance Standards
Transforming company policies into objectives and specific goals. Goals should have target values