Profile contract

sysml.ibd@2

sysml.ibd@1 plus SysML 1.6 port notation: proxy/full/conjugated port glyph variants, port multiplicity, nested ports (x_port), flow properties with direction on interface blocks and flow specifications.

graph projectionSysML internal block diagram

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Primary palette

sysml.blocksysml.constraintsysml.flowspecsysml.interfaceblocksysml.testcasesysml.valuetype

Additional context roles

req.requirementreq.test

Relationship roles

assocsysml.allocatesysml.compositionsysml.copysysml.derivesysml.flowsysml.mastersysml.refinesysml.satisfysysml.tracesysml.verifyuml.generalization

Legal endpoints

Relation	Source roles	Target roles	Self relation
`assoc`	req.requirement, req.test, sysml.block, sysml.constraint, sysml.flowspec, sysml.interfaceblock, sysml.testcase, sysml.valuetype	req.requirement, req.test, sysml.block, sysml.constraint, sysml.flowspec, sysml.interfaceblock, sysml.testcase, sysml.valuetype	Allowed
`sysml.allocate`	req.requirement, req.test, sysml.block, sysml.constraint, sysml.flowspec, sysml.interfaceblock, sysml.testcase, sysml.valuetype	req.requirement, req.test, sysml.block, sysml.constraint, sysml.flowspec, sysml.interfaceblock, sysml.testcase, sysml.valuetype	Not allowed
`sysml.composition`	req.requirement, sysml.block, sysml.constraint, sysml.flowspec, sysml.interfaceblock, sysml.valuetype	req.requirement, sysml.block, sysml.constraint, sysml.flowspec, sysml.interfaceblock, sysml.valuetype	Not allowed
`sysml.copy`	req.requirement, req.test, sysml.block, sysml.constraint, sysml.flowspec, sysml.interfaceblock, sysml.testcase, sysml.valuetype	req.requirement, req.test, sysml.block, sysml.constraint, sysml.flowspec, sysml.interfaceblock, sysml.testcase, sysml.valuetype	Not allowed
`sysml.derive`	req.requirement, req.test, sysml.block, sysml.constraint, sysml.flowspec, sysml.interfaceblock, sysml.testcase, sysml.valuetype	req.requirement, req.test, sysml.block, sysml.constraint, sysml.flowspec, sysml.interfaceblock, sysml.testcase, sysml.valuetype	Not allowed
`sysml.flow`	req.requirement, req.test, sysml.block, sysml.constraint, sysml.flowspec, sysml.interfaceblock, sysml.testcase, sysml.valuetype	req.requirement, req.test, sysml.block, sysml.constraint, sysml.flowspec, sysml.interfaceblock, sysml.testcase, sysml.valuetype	Not allowed
`sysml.master`	req.requirement, req.test, sysml.block, sysml.constraint, sysml.flowspec, sysml.interfaceblock, sysml.testcase, sysml.valuetype	req.requirement, req.test, sysml.block, sysml.constraint, sysml.flowspec, sysml.interfaceblock, sysml.testcase, sysml.valuetype	Not allowed
`sysml.refine`	req.requirement, req.test, sysml.block, sysml.constraint, sysml.flowspec, sysml.interfaceblock, sysml.testcase, sysml.valuetype	req.requirement, req.test, sysml.block, sysml.constraint, sysml.flowspec, sysml.interfaceblock, sysml.testcase, sysml.valuetype	Not allowed
`sysml.satisfy`	req.requirement, req.test, sysml.block, sysml.constraint, sysml.flowspec, sysml.interfaceblock, sysml.testcase, sysml.valuetype	req.requirement, req.test, sysml.block, sysml.constraint, sysml.flowspec, sysml.interfaceblock, sysml.testcase, sysml.valuetype	Not allowed
`sysml.trace`	req.requirement, req.test, sysml.block, sysml.constraint, sysml.flowspec, sysml.interfaceblock, sysml.testcase, sysml.valuetype	req.requirement, req.test, sysml.block, sysml.constraint, sysml.flowspec, sysml.interfaceblock, sysml.testcase, sysml.valuetype	Not allowed
`sysml.verify`	req.requirement, req.test, sysml.block, sysml.constraint, sysml.flowspec, sysml.interfaceblock, sysml.testcase, sysml.valuetype	req.requirement, req.test, sysml.block, sysml.constraint, sysml.flowspec, sysml.interfaceblock, sysml.testcase, sysml.valuetype	Not allowed
`uml.generalization`	sysml.block, sysml.interfaceblock, sysml.valuetype	sysml.block, sysml.interfaceblock, sysml.valuetype	Not allowed

Profile verification

Version-1 ports belong only to blocks; fields retain the bounded block member notation.
BDD emphasizes definitions and IBD emphasizes parts/ports/flows; the selected profile identity remains visible even when they share the renderer.
Version 2 adds proxy/full/conjugated port glyphs, multiplicity and bounded nested ports.
Item-flow endpoints must be legal ports and declared direction/typing remains intact; no propagation/evaluation is inferred.

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": "sysml.ibd@2"
}

Projection properties

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

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Design operations

Create block; edit fields/ports; connect allocation or flow under exact endpoint rules.

Bounded analysis

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

Outside this profile

SysML XMI interchange
SysML 2.0 deferred to a future profile family
flow property propagation/evaluation
formal OMG certification