Tool 215: What-If Analysis


AKA

"What-if" Principle

Classification

Analyzing/Trending (AT)

Tool description

The What-if analysis is a very effective idea-generating process that allows a team to question the possible outcomes if a process or procedure is altered. This is also helpful in assessing attempts to do something new or different, or to find a so-far untried solution to a problem.

Typical application

  • To discover and assess alternative ways to use a product or process.

  • To question existing practices and applications and to explore potential changes that might yield product or process improvement or a solution to a problem.

  • To change one's perspective in the idea-generation process.

Problem-solving phase

Select and define problem or opportunity

Identify and analyze causes or potential change

Develop and plan possible solutions or change

Implement and evaluate solution or change

Measure and report solution or change results

Recognize and reward team efforts

Typically used by

Research/statistics

1

Creativity/innovation

1

Engineering

Project management

Manufacturing

Marketing/sales

Administration/documentation

Servicing/support

4

Customer/quality metrics

2

Change management

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links to other tools

before

  • SCAMPER

  • Fresh Eye

  • Mental Imaging

  • Problem Analysis

  • Process Analysis

after

  • Creativity Assessment

  • Solution Matrix

  • Opportunity Analysis

  • Activity analysis

  • Process Flowchart

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Notes and key points

Option: On a more detailed level for product improvement or development, the What-if analysis could use the SCAMPER technique to generate new ideas: What-if we:

  • S = Substitute?

  • C = Combine?

  • A = Adapt?

  • M = Modify?, Magnify?

  • P = Put to other uses?

  • E = Eliminate?

  • R = Reverse?, Rearrange?

  • the material, part, shape, color, purpose, design, sequennce, components, procedure, etc.

Step-by-step procedure

  • STEP 1 The team identifies the problem or issue to be analyzed. See example Defects per Unit (DPU) Reduction Alternatives.

  • STEP 2 Team participants discuss and explore the "what-ifs" of the different proposed ways of solving the problem or improving the current situation.

  • STEP 3 The facilitator records, on a flip chart, all the finalized alternatives suggested by the team that have merit and need further study.

  • STEP 4 Last, the team prioritizes all potential solutions on the basis of feasibility and resource requirements The flip chart is dated.

Example of tool application

click to expand




Six Sigma Tool Navigator(c) The Master Guide for Teams
Six Sigma Tool Navigator: The Master Guide for Teams
ISBN: 1563272954
EAN: 2147483647
Year: 2005
Pages: 326

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