Course lesson · Lesson 5

Knowledge Infrastructure and Graph Retrieval

Design the memory stack — reference, procedural, and graph knowledge — and retrieve it well with RAG and graph methods.

What you'll take away

Design a workflow's memory as four distinct layers — reference, procedural, graph, and reflective traces.
Choose relationship-aware graph retrieval when the work depends on how entities connect, not just what was said.
Match the memory layer to the problem type rather than adding storage or graph complexity by default.
Treat memory ingestion, update cadence, and visibility scope as governance decisions, not backend details.

This lesson is part of the full course

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