Legend

We use four distinct legends for the figures. We have an architectural notation that identifies the key architectural concepts that we use; we use Business Process Model and Notation (BPMN) to describe some processes, Porter’s Value Notation to describe a few others, and UML sequence diagrams for interleaving sequences of activities. We do not show the UML sequence diagram notation here but the notation that we use from these other sources is:

Architecture

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FIGURE P.1 People, both individual and groups

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FIGURE P.2 Components (runtime ...

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