# Compatibility Matrix **Meta-Universe Specification** **Document ID:** MU-V2-ECO-002 **Title:** Multidimensional Compatibility Matrix **Document Class:** Informative **Version:** 2.0 (Draft) **Status:** Working Draft **Normative References:** MUC, MMAS, MUFP **Informative References:** Registered-Meta-Models, Certification, Known-Implementations **Copyright:** © Orkestron.AI **License:** Apache-2.0 --- # 1. Purpose This document defines the recommended Compatibility Matrix for Meta-Universe compliant assets. The Compatibility Matrix provides a standardized method for declaring interoperability between Meta-Models, standards, Federation Profiles and implementations. It enables both humans and AI agents to quickly determine whether semantic federation can be established and under which conditions. --- # 2. Scope The Compatibility Matrix can describe compatibility between: - Meta-Models; - MUC versions; - MMAS versions; - MUFP versions; - Federation Profiles; - imported standards; - Semantic Packages; - implementations. --- # 3. Design Principles Compatibility declarations are expected to be: - explicit; - version-aware; - traceable; - machine-readable; - technology independent; - reproducible. Compatibility is declared rather than assumed. --- # 4. Compatibility Dimensions Compatibility is not a single yes/no value. It is *multidimensional*: two assets may align perfectly on one axis and require work on another. Compatibility is therefore evaluated independently across: - Constitutional compatibility (MUC); - Architectural compatibility (MMAS); - Federation compatibility (MUFP); - Semantic compatibility; - Namespace compatibility; - Identity compatibility; - Mapping availability; - Projection compatibility; - Validation compatibility. Each axis yields its own result. A typical multidimensional verdict reads, for example: - **MUC compatible** — both assets obey the same constitutional principles; - **MMAS compatible** — their architectural structures align; - **MUFP requires upgrade** — federation needs a newer protocol version on one side; - **Semantic Mapping available** — concept differences are bridged by a published mapping; - **Federation Profile required** — interaction depends on a specific profile being loaded; - **Projection Profile supported** — a suitable Projection Profile exists for the exchange; - **Validation certified** — conformance has been independently verified. A consumer reads the whole vector, not a single label, to understand exactly what aligns and what must be prepared. --- # 5. Compatibility Levels Recommended levels: - Native - Compatible - Compatible with Mapping - Compatible with Transformation - Experimental - Incompatible Every declared level is accompanied by supporting evidence. --- # 6. Matrix Structure A matrix entry typically includes: - Source Model; - Target Model; - Source Version; - Target Version; - Compatibility Level; - Required Semantic Mappings; - Required Federation Profile; - Validation Status; - Notes. --- # 7. Example Matrix | Source | Target | Result | |--------|--------|--------| | Employee Meta-Model | Organization Meta-Model | Native | | Employee Meta-Model | O*NET | Compatible with Mapping | | Employee Meta-Model | ESCO | Compatible with Mapping | | Employee Meta-Model | Schema.org | Compatible with Transformation | | Employee Meta-Model | HL7 FHIR | Experimental | This table is illustrative. --- # 8. Version Compatibility Compatibility is version specific. Example: - Employee MM 2.x ↔ Organization MM 2.x : Compatible - Employee MM 2.x ↔ Organization MM 1.x : Mapping Required Major version changes typically trigger compatibility review. --- # 9. Federation Compatibility Compatibility declares: - supported MUFP version; - supported Federation Profiles; - supported Projection Profiles; - supported Identity Binding model; - synchronization capabilities. --- # 10. Imported Standards Compatibility can be published for imported standards including: - Schema.org - OData CSDL - HL7 FHIR - O*NET - ESCO - BPMN - ArchiMate Mappings are referenced instead of duplicated. --- # 11. Validation Compatibility validation verifies: - version alignment; - namespace consistency; - mapping availability; - profile compatibility; - contract requirements; - semantic integrity. Validation produces reproducible results. --- # 12. Publication Compatibility information is published together with: - repository metadata; - registered Meta-Model entry; - release notes; - validation reports. Consumers can discover compatibility before adoption. --- # 13. Governance Compatibility declarations identify: - publishing authority; - publication date; - supported versions; - review status. Compatibility is periodically revalidated. --- # 14. Architectural Invariants Compatibility preserves: - semantic sovereignty; - canonical identities; - provenance; - traceability; - constitutional compliance. Declaring compatibility does not modify either participating model. --- # 15. Automated Compatibility Resolution Because the matrix is multidimensional and machine-readable, AI agents can resolve compatibility automatically before any interaction begins. Given two assets and their versions, an agent reads the compatibility vector and determines: - **Can we interact at all** — do the constitutional and architectural axes align; - **Which Semantic Mappings to load** — which published mappings bridge the concept differences; - **Is a version upgrade needed** — does any axis report *requires upgrade* on either side; - **Which Federation Profile to use** — which profile the interaction depends on; - **What constraints apply** — which Projection Profiles, disclosure rules and validation requirements govern the exchange. The closest analogy is *dependency resolution in package managers*: just as a package manager resolves versions, transitive dependencies and required features before installing software, a Meta-Universe agent resolves standards versions, required mappings, profiles and constraints before federating. The Compatibility Matrix is the dependency graph of a semantic ecosystem, and federation is the equivalent of a successful resolved install. --- # 16. Future Directions A future **Semantic Validation Framework (SVF)** could standardize how each compatibility axis is computed and evidenced, turning the matrix from a published table into a verifiable, queryable resolution service. Such a service would let agents request a resolution plan ("what do I need to federate A with B?") and receive an ordered list of mappings, profile loads and upgrades — a semantic equivalent of a resolved dependency lockfile, cross-referenced with [Certification](Certification.md) results. --- # Final Statement The Compatibility Matrix provides a transparent and reusable mechanism for evaluating interoperability across the Meta-Universe ecosystem. By publishing explicit compatibility information, organizations enable predictable federation, informed adoption and automated reasoning while preserving semantic autonomy, governance and long-term evolution of independently managed Meta-Models.