Ten kinds of node. Everything a process does is one of these, and the palette is the same whether the flow has four steps or forty.
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01
Start
Where the process starts, and what data comes in with it.
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02
Form
What a person fills in. The same form on a desktop and on a phone.
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03
Condition
Branches the flow according to what the data says.
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04
Service
Calls another system: the core, an ERP, a web service.
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05
User
Assigns the task to a person or to a role.
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06
Intelligence
The node that decides. It reads, classifies and validates inside the flow, without stepping out to ask.
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07
Subtasks
Opens several branches in parallel and waits for them to close.
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08
Booking
Scheduling: appointments, slots, availability.
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09
Item selection
Picking from a catalogue inside the process.
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10
Exit
Closes the process, or hands it to the next one.