FINAL EXAM REVISION (LEC 5, 6, 7 & 8) Flashcards
Total quality management
continuously improve the quality of products and processes by involving all employees in the organization
Goals:
- careful design
- ensuring the organization can consistently produce the design
Malcom bridge national quality award
Performance excellence award given to companies that excel in quality
Design quality
Value of design to customers (in the market place)
Conformance quality
Degree to which a product/service meets design standard
Judged on:
- performance
- features
- reliability
types of cost of quality
- appraisal cost
- prevention cost
- internal failure cost
- external failure cost
Appraisal costs
Cost of inspection and testing
Prevention costs
Costs to prevent the number of errors
Internal failure costs
Costs of defects before a product leaves the system (factory)
External failure costs
Costs of defects after a product reaches the customer
Six sigma
A methodology that helps companies eliminate defects in the products and processes
Six sigma cycle (DMAIC)
- Define
- Measure
- Analyze
- Improve
- Control
Shingo system
Argues that service quality control does not prevent defects as they arise from people making errors
Believes that defects can be prevented by providing employees with feedback on errors
Poke-Yoke
Special tool that prevents workers from making errors
Production processes
Used to make any manufactured item
- Sources the parts
- Make the product
- Deliver the product
Lead time
time needed to respond to a customer order
Customer order decoupling point
Inventory is positioned to allow entities in the supply chain to operate independently
Lean manufacturing
Means of achieving high levels of customer service with minimal inventory investment
Make to stock
Serve from finished goods inventory
What’s available on “stock”
example:
- TV
- packaged foods
issue:
- excessive inventory
Assemble to order
Preassembled products that are customized to meet a customer’s specifications
issue:
- have longer lead times
- higher inventory costs
Make to order
Make the customer’s product from raw material, parts and components as soon as they place an order
issue:
- require more accurate forecasting
Engineer to order
Work with the customer to design and then make the product
issue:
- face higher design costs
- longer lead times.
Manufacturing process flow design
step-by-step guide on how to use materials to build a product through different stages of the process
tools;
- assembly drawing (visual)
- assembly chart (build and inspect each stage)
- operation and route sheet
- process flow chart (step by step flowchart)