Metadata Provenance

The open metadata ecosystem draws together metadata from many sources. Metadata provenance provides information about where metadata has come from and how it can be maintained (that is updated and deleted).

Metadata Collections

The metadata that a specific technology instance creates and maintains is collectively referred to as a metadata collection. Each metadata collection has a unique identifier, called the metadata collection id and an optional metadata collection name. When metadata from the collection is shared with the broader open metadata ecosystem, it includes the metadata collection id and metadata collection name in its header along with a category name that describes how the metadata was introduced into the open metadata ecosystem. This category name is called the Instance Provenance Type by the Open Metadata Repository Services (OMRS) and Element Origin by the Open Connector Framework (OCF) and most of the Open Metadata Access Services (OMASs). We will use “Element Origin” for the rest of this description since it is the most commonly used name.

Figure 1 shows the different values of Element Origin and how they tie into the mechanism used to introduce the metadata to the open metadata ecosystem.

Figure 1

Figure 1: What the different values of Element Origin say about the source of metadata

Further Information

License: CC BY 4.0, Copyright Contributors to the ODPi Egeria project.