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Personal Productivity in the Age of AI

Module 3 — Personal Knowledge Architecture

Lesson 12: The Three-Layer Knowledge Base — Raw, Wiki, Schema

Last updated: 2026-05-12

A corpus that an assistant can reason over needs more than a flat folder. Three layers — raw sources at the bottom, a curated wiki in the middle, and a schema file at the top — produce a knowledge base that compounds rather than rots.

Lesson 12: The Three-Layer Knowledge Base — Raw, Wiki, Schema

Blackboard

Raw at the bottom, schema at the top

13 min
Pause and Think

Imagine an assistant asked to summarise everything you have read about a recurring topic at work. Where would it look first, and how would it know which sources to trust?

Practice Question

Question

Does not count for certificate
Choose one answer, use the hint if needed, then check your answer.
Use the hint before checking if you need a nudge.