OIML Core
The measuring-instrument metamodel: vocabulary, subject chain, the six modules, the invariants.
OverviewThe metamodel of legal metrology, the 4-layer architecture, the six modules, the dependency law.Measurement VocabularyModule A: QuantityKind, Unit, QuantityValue, uncertainty, Measurand, InfluenceQuantity, Conditions, MeasurementResult, TraceabilityChain.The Subject ChainModule C core: Family → Group → Model → Sample; VIML anchoring; classification; scope and origin; delegation.Instrument AspectsModule C aspects: attributes/parameters, capabilities, behaviors, condition sets, formulas, constraints.Identity and ProvenanceModule B: Manufacturer, SoftwareComponent, Marking, Sealing, CalibrationRecord, Certificate.SpecificationModule D1: Recommendation, Requirement, ConformanceTest, TestMethod, TestStep.Test ExecutionModule D2: TestRun, EvidenceRecord, admissibility, ConstraintCheck, TestReport.EvaluationModule D3: SampleEvaluation, Verdict, TypeEvaluation, EvaluationReport, TypeApprovalDecision.Parties and WorkflowParties, roles, the certification workflow entities, lifecycle state machines.InvariantsINV-1..14: the metamodel’s laws, each with rationale, checks, and the shipped registry’s crosswalk.Shared Modulesemc-disturbances, env-iec60068, software-d31, reference-materials, specimen-governance, report-headers, examination-docs.