Figure 2-7 Mistake-Proofing the Design of Health Care Processes - Figure 2.7. Flowchart of mistake-proofing tools Notes: The variable n equals the number of solutions you would like to generate before selecting the best one. TRIZ is the acronym for the "Theory of Inventive Problem Solving" transliterated from Russian.Return to Document Current as of May 2007 Internet Citation: Figure 2-7: Mistake-Proofing the Design of Health Care Processes -. May 2007. Agency for Healthcare Research and Quality, Rockville, MD. http://www.ahrq.gov/professionals/quality-patient-safety/patient-safety-resources/resources/mistakeproof/mistakefig2-7.html