Profile contract

bpmn.basic@1

Pools and lanes as frames; typed start/end events; exclusive/parallel/inclusive gateways; dashed message flow allowed only across pools. Profile-level coverage, not BPMN conformance.

graph projectionBPMN-style process collaboration

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Primary palette

flow.decisionflow.endflow.gatewayflow.processflow.startflow.subprocess

Additional context roles

Relationship roles

bpmn.messageflowflow.nextuml.flow

Legal endpoints

Relation	Source roles	Target roles	Self relation
`bpmn.messageflow`	flow.end, flow.gateway, flow.process, flow.start, flow.subprocess	flow.end, flow.gateway, flow.process, flow.start, flow.subprocess	Not allowed
`flow.next`	flow.card, flow.collate, flow.connector, flow.decision, flow.delay, flow.display, flow.document, flow.end, flow.io, flow.isoextract, flow.isomerge, flow.loopend, flow.loopstart, flow.manualinput, flow.manualop, flow.offpage, flow.parallelmode, flow.preparation, flow.process, flow.sort, flow.start, flow.storage, flow.subprocess	flow.card, flow.collate, flow.connector, flow.decision, flow.delay, flow.display, flow.document, flow.end, flow.io, flow.isoextract, flow.isomerge, flow.loopend, flow.loopstart, flow.manualinput, flow.manualop, flow.offpage, flow.parallelmode, flow.preparation, flow.process, flow.sort, flow.start, flow.storage, flow.subprocess	Not allowed
`uml.flow`	flow.acceptsignal, flow.choreotask, flow.connector, flow.decision, flow.end, flow.flowfinal, flow.forkjoin, flow.gateway, flow.group, flow.intermediate, flow.io, flow.merge, flow.objectnode, flow.process, flow.sendsignal, flow.start, flow.subprocess, flow.timeevent	flow.acceptsignal, flow.choreotask, flow.connector, flow.decision, flow.end, flow.flowfinal, flow.forkjoin, flow.gateway, flow.group, flow.intermediate, flow.io, flow.merge, flow.objectnode, flow.process, flow.sendsignal, flow.start, flow.subprocess, flow.timeevent	Not allowed

Profile verification

Gateway type is explicit. Message flows cross pool boundaries; a message flow inside the same pool is invalid.
Keep process sequence and message flow as separate verbs and symbols.

Profile defaults

Explicit file settings override eligible CSS, then these profile defaults and the common standard apply. Unspecified semantic facts remain unspecified.

{
  "projection.kind": "graph",
  "projection.profile": "bpmn.basic@1"
}

Projection properties

kind, profile, inputs, analysis_budget, traces, iso, depth

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Design operations

Create pool/lane frames and events/tasks/gateways; connect sequence or message flows; edit event/gateway metadata.

Bounded analysis

Structural verification and display only; no execution or implied process engine.

Outside this profile

BPMN XML interchange
choreography and conversation diagrams
executable process semantics
full BPMN conformance