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The GFunnel Methodology

Investigation and Research Algorithm

All algorithms

The steps

  1. State the question being investigated with maximum precision.
  2. Apply the Variable Principle. Distinguish what is known, what is bounded, what is held open.
  3. Identify the highest-leverage variable to narrow first. Per Pareto: 20% of unknowns determine 80% of the answer.
  4. Design the inquiry to maximally narrow that variable. Per Layer ◇: state the falsifiability condition before gathering data.
  5. Gather without filtering per Shepherd’s Way Step 3. Hold every observation open.
  6. Apply Correspondence. Does the answer at this scale apply at adjacent scales? Cross-scale verification strengthens conclusions.
  7. Apply Layer I.G. What prior investigations exist? Their failures and successes inform the current.
  8. Status the conclusion: resolved, bounded, held open.
  9. Document everything. Per Database step. An investigation undocumented is repeated at full cost.
  10. Per Repetition: each investigation is informed by all prior. Per the Capsule: every failed line of inquiry contributed to current methodology.

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From the GFunnel Methodology v5.1 by Cameron Garlick, licensed CC BY 4.0. Steps are reproduced word for word.