An analytic technique created at the CIA, ACH helps you analyze complex situations with multiple hypotheses and countless pieces of evidence. Multiple people can collaborate on a single problem, and ACH will compare everyone's analyses and pinpoint the precise areas of disagreement, allowing for a more focused debate.

A demo of using Analysis of Competing Hypotheses + RAG for AI grounding

Prototype Implementation of Heuer's ACH ( Analysis of Competing Hypotheses ) + simple Bayesian updating

Structured analytic tradecraft library for Rust. Provides the Analysis of Competing Hypotheses (ACH) framework, Bayesian posterior inference, and enhanced evidence analysis as composable, focused crates.

An end-to-end Mathematica pipeline that automates the structured analytic technique of Analysis of Competing Hypotheses (ACH) as described in Beebe & Pherson (2015) Cases in Intelligence Analysis, using the Google Gemini API.