interface-canon/infospace/mappings/upstream.md

# Upstream ownership and mapping

InfoTechCanon supplies shared semantics through the model's
[import manifest](../models/interface/imports.json). FIAM supplies the specialized
architecture vocabulary through its [source manifest](../assimilation/fiam/sources.json).
This is a draft local mapping; no upstream ownership transfer is asserted.

| FIAM/domain term | Shared owner or disposition | Mapping boundary |
| --- | --- | --- |
| InterfaceContract | Local interface specialization; ITC-LAND already seeds Interface | A semantic contract is one aspect of interface architecture; not an exact alias for every landscape Interface. |
| Endpoint | ITC-LAND seeds Endpoint; local FIAM-qualified usage | The FIAM meaning is the locator of a Binding. Network interfaces and resource selectors are separate. |
| Participant / SystemNode | Align with ITC-LAND SoftwareSystem/SoftwareComponent where applicable | No blanket equivalence to Actor, host, process, or deployment; choose by modeled scope. |
| Entity identifier | ITC-IDENT Identifier / Scoped Identifier | FIAM identifier syntax alone does not establish global identity. |
| same-entity-as | Relate to ITC-IDENT Synonymity Assertion | FIAM query-time equivalence has specific evidence constraints; no destructive merge or automatic cross-canon equivalence. |
| Assertion | ITC-GOV Assertion | FIAM specializes architectural property/relation assertions with evidence and polarity. |
| FIAM evidenceRecord | Map to ITC-EVID Evidence plus Evidence Source | FIAM evidenceRecord is support metadata with source, mode and confidence. ITC Evidence is an assertion drawn for a question; source container is separately identified. This is not a one-to-one rename. |
| Evidence score | ITC-EVID Evidence strength | A FIAM Lens computes a policy-specific heuristic; confidence and support scores are not universal truth probabilities. |
| Artifact | FIAM describing/implementing artifact role | It may serve as ITC Evidence Source when addressable and versioned/captured where mutable; the Evidence assertion must state its explicit interest. Implementing a contract does not automatically make an artifact a KnowledgeArtifact. |
| Zone / security profile | Reference FIAM contextual classifications | No transfer of generic network, security, trust, tenant, or authorization ownership. |
| Policy / decision | ITC-GOV Policy / Decision | A Lens finding is an interpretation, not automatically a governed decision or authorization. |

Port, Contract Participation, Operation, Binding, Channel, Interaction,
Interaction Flow, Information Resource, Information Shape, Resource Selector,
Facet, Representation, and Lens receive FIAM-derived interface-domain definitions.
Names that overlap other ITC models remain qualified as `interface-model:*`;
this initial import set is not an exhaustive federation ownership audit.

The [2026-09-09 review](review-2026-09-09.md) resolves local usage boundaries
against ITC-DATA, ITC-INFOSPACE, and ITC-NET. FIAM Port differs from network Port;
Information Resource/Shape and Representation have scoped mappings to Data;
describing artifacts may qualify as KnowledgeArtifact. These are qualified
mappings, not automatic equivalence or ownership transfers.

The initial review is complete. External federation acceptance and evidence of
consumer adoption remain in INTERFACE-WP-0004; publication stays draft.

## Owner-review clarifications

Network Port covers physical/device ports as well as protocol-level transport
ports; the TCP example is illustrative, not exhaustive. Resource/shape mappings
establish neither universal subtyping nor exact equivalence. Describing artifacts
may qualify as KnowledgeArtifact; implementation artifacts do not qualify merely
because they implement a contract. Evidence Source is the addressable container,
with version/capture where mutable; Evidence states the assertion and explicit
interest. These clarifications preserve the imported source meanings.

Acceptance scope and source revisions are recorded in the
[acceptance report](../reviews/acceptance/README.md). Earlier owner reviews target
0.1.1; the local clarification revision is draft 0.1.2.