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Jay Arthur
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Purpose: To design reliability of systems.
Use block diagrams for equipment and flow charts for processes. There
are three types of block diagrams:
- System - physical relationship of major system components
- Functional - Categorize system components according to the function
they provide.
- Reliability - depicts the effect of a component failure on the
system's function.
To Create a Block Diagram
- Lay out a diagram of parallel and serial components
- Identify probability of failure of each component (value 0-1).
- Calculate parallel probabilities. (a+b-a*b)
- Multiply serial component probabilities (a*b)
- Use parallel parts to increase reliability.
The Block Diagram is just one of the tools included in the QI
Macros for Excel SPC Software for Excel.
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the FREE 30-day Evaluation copy of the QI Macros Excel SPC Software for Six Sigma
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