From understanding to practice.

Notes is maintained by irideas. It organizes concepts, models and evidence to understand how things work, supporting everyday life, growth and shared practice.

Current interests include systems engineering, business operations, organizational capabilities, human activity, and collaboration between people and AI, alongside relevant questions in economics, science and technology.

From information to judgment

Materials come from courses, books, research, industry sources and observations from practice. Retain sources and context, clarify concepts and relationships, and develop usable understanding. Make judgments in light of goals and constraints, then revise them through feedback from practice.

Facts, source authors’ views and this site’s judgments are distinguished. Significant revisions are recorded.

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