PLCS RDL

Top level standardized PLCS Reference Data (common for all projects) is made up of several related Reference Data Libraries:

• a representation of a classifiable subset of the PLCS EXPRESS schema as an OWL (Ontology Web Language) ontology
• a subset of the Dublin Core meta-data elements and terms, with a few OASIS-specific extensions, for internal management of the Reference Data (e.g. creator and date modified)
• the Reference Data itself, which includes:
  • Classes
  • a Class hierarchy
  • properties of the Classes
  • instances or Individuals based on the Classes
  • relationships between Classes
  • relationships between Class hierarchies and relevant PLCS EXPRESS schema elements.