A Process Decision Program Chart (PDPC) has 2 main uses: documents steps to completing a process and impact analysis. PDPC does this through a systematic exploration of a process and what could go wrong. This is helpful project management tool in the  Improve phase of DMAIC before implementing your plan but I find it helpful in the analyze phase after process mapping to check my understanding of current state.

Process Decision Program Charts are considered part of the 7 management tools (7M)

When Would You Create a Process Decision Program Charts (PDPC)?

Not every six sigma tool has to be used on every project. After all, it takes time and effort to implement these things. PDPC is best used when:

  • You’re about to enact a new process.
  • You’re delivering a large and complex project.
  • The cost of the process failing is high.

How to Create a Process Decision Program Charts (PDPC)?

1) First you start with a tree diagram of your process.

Put your objectives on the first level, main activities on the second level, and the tasks at the 3rd level.

Process Decision Program Charts (PDPC) start with a tree diagram.
Process Decision Program Charts (PDPC) start with a tree diagram.

2) Then you brainstorm issues that could occur while performing those tasks.

Process Decision Program charts (PDPC) uses brainstorming to identify issues.
Process Decision Program charts (PDPC) uses brainstorming to identify issues.

Step 3: Cross off issues that are unlikely to happen.

Cross off the unlikely issues.
Cross off the unlikely issues.

Step 4: Identify countermeasures for the likeliest issues

Identify countermeasures for the most likely issues.
Identify countermeasures for the most likely issues.

ASQ Six Sigma Green Belt PDPC Questions

Question: Which of the following tools is used to identify potential events and contingencies for an implementation plan?


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Questions, comments, issues, concerns? Please leave a note in the comments below!


(A) PERT chart
(B) Process decision program chart
(C) Fishbone diagram
(D) House of quality

Answer B. This is a definition question for PDPC – a Process Decision Program Chart. A Fishbone diagram helps us determine root cause. The House of Quality helps us translate voice of the customer to specifics of possible design. The PERT chart (Program Evaluation and Review Technique) is a way to see relationships between different events and tasks.

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Comments (4)

Identify the new quality management tool that would be of greater assistance in identifying the impact that various process output variables bring:

A. Prioritization matrices B. Tree diagram C. Activity network diagram D. Process decision program charts

The answer is Process decision program charts (PDPC). PDPCs are used to document a process and complete impact analysis.

A Tree diagram helps you break down big concepts into progressively greater detail, so that doesn’t work.

A Prioritization Matrix is used to help prioritize potential solutions by rating each solution found based on specific criteria using numeric values, so that is a poor answer.

An activity network diagram graphically depicts your project timeline so that doesn’t match either.

This is a classis example of a genius work.
Appreciate the article, it really helps me on my LEAN SIX SIGMA training and certification program.

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