Domain Specific Language (DSL)

domain-specific modeling (DSM)

ebXML RegRep (ebXML Registry and Repository)

Global Justice XML Data Model (GJXDM or Global JXDM)

Meta-Object Facility (MOF)

Metadata Online Registry (METeOR)

Model Transformation Language (MTL)

Model-based testing (MBT)

National Information Exchange Model (NIEM)

Object Constraint Language (OCL)

Ontology (computer science)

Queries/Views/Transformation (QVT)

VIsual Automated model TRAnsformation (VIATRA)

XML Metadata Interchange (XMI)

image metadata registry

define metadata registry

wikipedia metadata registry

weblio metadata registry

kotobank metadata registry

jisho metadata registry