Six Sigma v. PQMI

By Janet Gallo

What is Six Sigma?

A quality improvement initiative developed by Motorola around 1987, and trademarked in1991.

http://www.pqa.net/ProdServices/sixsigma/W06002009.html

What is PQMI?A process improvement methodology developed by AT&T around 1989.

http://www.bmpcoe.org/library/books/ex-se/17534.html

How many approaches are there in 6σ?

DMAIC DMADVA new process needs to be developed OR an existing process does not meet the level of customer specification or Six Sigma level

Existing Process Does Not Meet Customer Specifications

What are the seven steps of PQMI?1. Establish Team and Roles/Responsibilities2. Define Process & Identify Customer

Requirements3. Define & Establish Measures4. Assess Conformance to Customer

Requirements5. Identify Opportunities6. Rank Opportunities and Set Objectives7. Improve Process Quality

What are the steps of 6σ? 1. Define2. Measure3. Analyze4. Improve5. Control

PQMI1. Establish Team and Roles/Responsibilities

2. Define Process & Identify Customer Requirements

3. Define & Establish Measures

4. Assess Conformance to Customer Requirements

5. Identify Opportunities

6. Rank Opportunities and Set Objectives

7. Improve Process Quality

6σ 1. Define(PQMI No. 2)

2. Measure(PQMI No. 2, 3, 4)

3. Analyze(PQMI No. 3, 4, 5)

4. Improve(PQMI No. 4, 5, 6)

5. Control(PQMI No. 4, 5, 6, 7)

How the Steps Match

Roles & Responsibilities

What are the roles in 6σ?• Deployment

Champions• Master Black Belts• Sponsors• Black Belts• Green Belts• Yellow Belts• Process Owners

What are the roles in PQMI?

• Deployment Champions

• Master Black Belts• Sponsors• Black Belts• Green Belts• Yellow Belts• Process Owners

• Process Management Team

• Process Owners• Facilitators

(Coaches)• Sponsor

5 WhysStatistical and fitting toolsAnalysis of varianceGeneral linear modelANOVA Gauge R&RRegression analysisCorrelationScatter diagramChi-squared testAxiomatic designBusiness Process Mapping/Check sheetCause & effects diagram (also known as fishbone or Ishikawa diagram)Control chart/Control plan (also known as a swim lane map)/Run chartsCost-benefit analysisCTQ tree

Design of experiments/StratificationHistograms/Pareto analysis/Pareto chartPick chart/Process capability/Rolled throughput yieldQuality Function Deployment (QFD)Quantitative marketing research through use of Enterprise Feedback Management (EFM) systemsRoot cause analysisSIPOC analysis (Suppliers, Inputs, Process, Outputs, Customers)COPIS analysis (Customer centric version/perspective of SIPOC)Taguchi methods/Taguchi Loss FunctionValue stream mapping

PQMI

PQMI

PQMI

PQMI

6 SigmaTools

The End