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Six Sigma

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Danielle Stowell

on 28 February 2014

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Transcript of Six Sigma

Finding the Root Cause

Three phases:
1. Exploring
2. Generating hypotheses
3. Verifying and eliminating potential causes

Work through each phase down one of two problem-solving paths:
Data analysis
Process analysis
Data Analysis

Phase 1: Explore
Know what you need to know
Have a potential hypotheses in mind already
Logical cause analysis
Ask lots of questions
Phase 2: Hypothesize
Know the specific problem to be solved, and look beyond symptoms
Phase 3: Verify
Causal logic
Statistical verification
Pilot testing and experimentation

Process Analysis

Phase 1: Explore
Process mapping - SIPOC or flow charts
Phase 2: Hypothesize
Level 1 - Identify obvious process problems
Disconnects, bottlenecks, redundancies, product rework, checkpoints
Level 2 - Quantify value-added steps vs. value enabling or non-value-adding steps (for the customer)
Phase 3: Verify
Use the same tools as data analysis - causal logic, statistical verification, and pilot testing/experimentation
Measuring Process Performance

Basic Measurement Concepts

Two Components of Measure

Getting Ready to Analyze
Basic Measurement Concepts

Observe first, then measure

Continuous vs. Discrete

Measure for a reason

Have a measurement process
Two Components of Measure

1. Plan and measure performance against customer requirements

2. Develop baseline defect measures and identify improvement opportunities

Getting Ready For Analyze

Revisit the problem statement

Create a plan for analysis

Update the project story board

Prepare for the tollgate review with sponsor

Improving the Process

Generate creative solution ideas:
Be Practically Impossible

Cook the raw ideas

Select a solution

Pilot test

Implement full scale

Activity wrap up

Full transcript