A decision compares available actions using current information and a criterion. In a graph, a decision node controls which outgoing edge is followed.

A Choice Selects Among Alternatives

A transition applies an event or result to the current state and selects a next state. Its preconditions and effects should be explicit enough to test.

A Transition Changes Graph State

A human-in-the-loop pattern assigns a person a specific decision, evidence view, and response window. Merely adding a confirmation button does not guarantee effective oversight.

Human-in-the-Loop Is a Defined Decision Role

In this situation—choosing whether to answer, retrieve a source, or ask a clarifying question—which choice best applies “A Choice Selects Among Alternatives”?

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