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A PICK chart is a Lean Six Sigma tool, developed by Lockheed Martin, for organizing process improvement ideas and categorizing them during the Identify and Prioritize Opportunities Phase of a Lean Six Sigma project.
When faced with multiple improvement ideas a PICK chart may be used to determine the most useful. There are four categories on a 2*2 matrix; horizontal is scale of payoff (or benefits), vertical is ease of implementation. By deciding where an idea falls on the pick chart four proposed project actions are provided; Possible, Implement, Challenge and Kill (thus the name PICK).
Low Payoff, easy to do - Possible
High Payoff, easy to do - Implement
High Payoff, hard to do - Challenge
Low Payoff, hard to do - Kill
The vertical axis, representing ease of implementation would typically include some assessment of cost to implement as well. More expensive actions can be said to be more difficult to implement.
Sample PICK chart 
|Payoff Low||Payoff High|
|easy to do||Possible||Implement|
|hard to do||Kill||Challenge|
- Michael.L.George (2006) Lean Six Sigma for Services,Seoul:McGrawHill Korea. ISBN 89-88825-87-X