Data Catalog contents

The standard and custom libraries are used to organize metadata in the Data Catalog.

The standard library contains standard BOD metadata. The custom library stores metadata for custom objects, including custom BODs and objects of type ANY, DSV, and JSON.

Standard metadata

The standard library consists of one or more global or application-specific libraries that contain standard BOD metadata. Global libraries are shared across applications. Application-specific libraries are limited to a specific application.

Each noun in a standard library includes this metadata:

  • Noun Name
  • Noun XSD: Flattened XML Schema Definition
  • Additional metadata, for example, this metadata:
    • Patch number: Versioning identifier maintained at the library, tenant, and noun levels
    • XPaths to key fields
    • Supported verbs
    • Relationships to other nouns

Only the latest version of each noun’s metadata is stored in the Data Catalog.

Custom metadata

The custom library contains metadata for these object types:

  • Custom BODs (custom nouns)
  • ANY
  • DSV
  • JSON

Metadata that is stored for custom objects varies by these types:

  • Custom BODs: The same metadata structure as standard nouns.
  • ANY: Only an object name is stored.
  • DSV: The DSV schema definition is stored for each object name.
  • JSON: The JSON schema definition is stored for each object name.

Only the latest version of each custom object’s metadata is stored in the Data Catalog.