Structured investigation method: 5 Ws + 5 Whys with Bayesian reasoning, causal DAG traversal, and formal proofs. For any domain — engineering incidents, business failures, medical diagnosis, personal decisions.

Interactive learning game to practice the 5 Whys root cause analysis technique with AI-guided facilitation

8 hands-on Certified Lean Six Sigma White Belt labs covering Lean Six Sigma foundations, DMAIC, customer value, SIPOC, process mapping, TIMWOODS waste, check sheets, basic visuals, 5 Whys, Fishbone, 5S, standard work, visual controls, and improvement action planning.

WSQ Certified Lean Six Sigma Yellow Belt (CLSSYB) courseware: a 252-slide visual deck, Lesson Plan, Learner Guide and 14 hands-on labs (9 core + 5 elective) structured around the DMAIC roadmap and grounded in the CSSC Yellow Belt body of knowledge.

Portable SKILL.md for evidence-based root-cause analysis across Claude Code, Codex, and AI coding agents

Enterprise-grade Root Cause Analysis (RCA) dashboard in Power BI. Features dynamic metric switching (Incident Volume vs. Financial Impact), cumulative trend analysis using modern DAX (WINDOW functions), and 5-Whys decomposition trees.

Open-source root cause analysis toolkit for teams using the 5 Whys method.