Glossary & Reference

An Interface Contract is the authoritative set of obligations, constraints, behaviors, responsibilities, states, inputs, outputs, limits, and verification conditions governing interaction across an Interface.

The Interface Contract defines what every conforming implementation shall satisfy. It may include geometry, datums, load capacity, resource characteristics, permitted states, communication semantics, failure behavior, safety conditions, inspection points, compatibility rules, and lifecycle obligations.

An Interface Profile is a controlled selection, specialization, or parameterization of an Interface Contract for a particular material, region, performance class, building type, manufacturing capability, environmental condition, or use case.

A Profile may:

select permitted options;

establish narrower parameter ranges;

add context-specific requirements;

identify approved connectors;

define regional or project constraints;

specify evidence and certification levels.

An Interface Profile shall not silently weaken or contradict the governing Interface Contract. Any permitted deviation shall be explicit, authorized, traceable, and accompanied by an appropriate compatibility classification.

The Contract establishes the stable common boundary. The Profile establishes how that boundary applies within a declared context.