Glossary Updates6 new terms added to the glossaries · October 11, 2026, 13:38 CEST
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Glossary · Extensions

iiRDS Machinery Domain

Also known as: Machinery Domain, iiRDS machinery domain extension, iirdsMch

In iiRDS (intelligent information Request and Delivery Standard), the Machinery Domain is the standardized domain extension in the namespace http://iirds.tekom.de/iirds/domain/machinery that adds vocabulary for machinery documentation to the iiRDS core: classes of supplies such as spare parts, lubricants and protective equipment, the planning time SetupTime, machinery lifecycle phases such as Commissioning and Disassembly, and information subjects such as CircuitDiagram or MaintenancePlan.

  • iiRDS term
  • Ontology
  • Information architecture

In one sentence

The iiRDS Machinery Domain adds machinery vocabulary to iiRDS: supplies, setup time, lifecycle phases like commissioning, subjects like circuit diagrams.

Example

A topic on commissioning a palletizer is tagged with the lifecycle phase iirdsMch:Commissioning, and the grease it requires is described as an instance of iirdsMch:Lubricant.

How it applies

  • What it adds: The Machinery Domain extends core classes rather than replacing them. Its supplies are subclasses of iirds:Supply (functional metadata for physical objects used in work tasks), its lifecycle phases are instances of the core phase classes iirds:DesignAndRealization, iirds:PuttingToUse, iirds:Use and iirds:AfterUse, and its subjects are instances of the core information subject classes iirds:TechnicalOverview, iirds:Safety and iirds:Collection. All terms carry the prefix iirdsMch:.
Kind Defined in the Machinery Domain
Supplies (subclasses of iirds:Supply) ConsumableSupply, HardwareTool, Lubricant, OperatingSupply, ProtectiveEquipment, SparePart, each with a generic instance such as GenericSparePart
Planning time (subclass of iirds:PlanningTime) SetupTime, with the instance GenericSetupTime
Lifecycle phases (instances of the core phase classes) Construction; Transport, Assembly, FirstUse; Commissioning, Cleaning, Modification; Storage, Disassembly, CloseDown, Reuse (label "recycling")
Technical overview subjects CircuitDiagram, FlowDiagram, HydraulicDiagram, PneumaticDiagram, Layout
Safety subjects SafetyMeasure, SafetyEquipment, ExplosionProtection, InstallationError, EnvironmentalNote, EnvironmentalProtectionInstruction
Collection subjects PartsList, ListOfSpareParts, ListOfLubricants, ListOfOperatingSupplies, ListOfProtectiveEquipment, ListOfTools, LubricationPlan, MaintenancePlan
  • Technical documentation: The lifecycle phases follow how machines are documented — commissioning, for example, is defined with reference to DIN EN 82079-1 as transferring a product into active use and instructing personnel, including final inspection tests and the handover of documentation. Tagging topics with these phases lets a portal show a commissioning engineer only commissioning content.
  • What it does not define: Component names, product functions and product features are manufacturer-specific. iiRDS does not standardize them; the generator adds them at docking points or through a proprietary extension.
  • Limits: The domain names subjects such as SafetyMeasure or ExplosionProtection for metadata. Tagging content with them says nothing about whether the information meets the Machinery Regulation or a safety standard.

Machinery Domain vs. Handover Documentation Domain

The Machinery Domain describes the content of machinery documentation at a fine level — tasks, supplies, phases, diagrams — for intelligent delivery. The Handover Documentation Domain provides document categories for handing over whole documents in iiRDS/H. A machine builder can use both in one documentation process.

In RDF

Shown in Turtle for readability — inside a package, metadata.rdf is written in RDF/XML.

@prefix iirds: <http://iirds.tekom.de/iirds#> .
@prefix iirdsMch: <http://iirds.tekom.de/iirds/domain/machinery#> .

<https://example.com/iirds/commissioning-palletizer> a iirds:Topic ;
    iirds:relates-to-product-lifecycle-phase iirdsMch:Commissioning .

<https://example.com/supplies/grease-ep2> a iirdsMch:Lubricant .

External references

By knowledge.aitechdoc.world · Published October 11, 2026 · Last reviewed

Source: iiRDS Specification 1.3, iiRDS Consortium — RDF schema reference, Machinery Domain

Definitions follow the cited standards and specifications. Where a source is a copyrighted publication, such as an ISO, IEC or EN standard, the definition is a close paraphrase, not a verbatim quotation, so as not to infringe copyright. We recommend reading the original publication. The sections “How it applies” are editorial commentary by AI TechDoc Knowledge and are not part of any standard.

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