Memory preserves selected information across steps or sessions. Engineering memory means choosing what to retain, for how long, and who may retrieve it.

Memory Carries Information Forward

In this situation—remembering a learner prefers diagrams while forgetting an expired access code—which choice best applies “Memory Carries Information Forward”?

State is the minimum information needed to choose and continue work at a point in the graph. It can include observations, progress, decisions, and permissions—not an indiscriminate transcript dump.

State Is the Current Relevant Situation

Working memory supports the current run, episodic memory records selected experiences, and semantic memory stores reusable facts or concepts. Each needs different retrieval and retention rules.

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