THOUGHT-PROVOKING QUESTIONS
Basic Function Determination Question:
1. “If this function didn’t have to be performed, would any of the other functions
listed still have to be performed?”
Higher Level Logic Questions:
2. “Why is it necessary to perform this function?”
3. “What higher level function caused this function to come into being?”
4. “What is really trying to be accomplished when this function is performed?”
How Else Logic Question:
5. “How Else can this function be accomplished or performed?”
How Logic Question:
6. “How is this function actually accomplished or proposed to be
accomplished?" This question is asked of a Why Function and should yield at
least one How Function as an answer.
Supporting Function Question:
7. “When/If this function is performed, what other functions must be
performed?” This question is asked of all Primary Path Functions to discover if
any supporting functions should be added to the logic diagram.
Verification Questions:
8. “Does this How Function help its Why Function?”
9. “If this How Function is accomplished will it help its Why Function?”
A “yes” answer to the first question verifies the logic. When in doubt, the second
question is asked which must also yield a “yes” answer to verify the logic. A “no”
answer to either of these questions indicates that the How Function is a
supporting function of the Why Function.
When/if Logic Question: (Same as Supporting Function Question.)
7. “When/if this function is performed, what other functions must be
performed?”
Why-How Logic Questions:
10. “Why must this function be performed?”
6. “How is this function actually accomplished or proposed to be
accomplished?”
Why Logic Questions:
2. “Why is it necessary to perform this function?”
10. “Why must this function be performed?”