Frameworks
Reusable Product OS systems. Start with the problem, then the layer coverage, then the implementation artifacts.
Four-layer operating model
Layers: Product (strategy, customer, hypotheses, measurement), Execution (requirements, context, agents, implementation, validation), Memory (state, decisions, constraints, learnings), Human (judgment, approval, escalation, strategy).
Evidence: Labs case studies · Ideas: Thinking
Angry Letters operating system
Layer coverage: Strong in Execution and Human layers with practical Memory structures for campaign operations, approvals, and delivery constraints.
Evidence: Angry Letters case study · Ideas: Thinking
Product strategy and context system
Layer coverage: Strong in Product and Memory layers with explicit handoffs into Execution and Human approval loops.
Evidence: matthewheyman.com case study · Ideas: Thinking
Legacy technical identifiers: Some repositories and install paths still include historical names such as matthew-heyman-oais, angry-letters-oais, poais-core, and oais/. These are retained for compatibility while public category language stays Product OS.