Figure 8-12-13 Mistake-Proofing the Design of Health Care Processes - Figure 8.12. The dial on the notebook indicates the status of the paperwork insideReturn to Document Figure 8.13. This notebook employs switches to let workers know the status of the paperwork insideReturn to Document Current as of May 2007 Internet Citation: Figure 8-12-13: 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/mistakefig8-12-13.html