Functional Diagram

In the OSE sense of the word, we mean a Diagram of How it Works - most closely captured as a Functional Block Diagram - [1].

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See Activity Diagram (what is accomplished), Actions or Task Analysis (how an activity is accomplished), Block Diagram, Function Structure Diagram.

Other related diagrams/models: It can be a mixture of a Workflow, Functional Flow Block Diagram, Function Model, Logic Model, Functional Diagram, Flowchart, Business Process Model, Flow Process Chart.

Logic refers to how something works from the control perspective. This includes operation logic, sequence, and feedback for systems that may involve automation. This is not about logic gates in circuits, though the topics are related.

Diagramming software (cloud-collaborative-realtime-embeddable) should be used.