Area 6 Models - Metadata Discovery

Area 6 provides structures for recording the results of automated metadata discovery as annotations to associated assets in the metadata repository.

Metadata discovery requires different types of analysis. This analysis may run just once, say when the asset is created, on demand or based on an event or schedule.

A particular type of analysis is implemented in a discovery service. Within the discovery service are one to many discovery steps. Each step performs some sort of analysis that may result in an annotation for one or more assets.

The annotations from a particular run of a discovery service are grouped together into a discovery analysis report. The annotations may be reviewed and approved by a steward. The steward may convert the annotation to a harden metadata type, or they may flag the annotation as invalid. When the discovery service is rerun, the new annotations can be matched to the annotations from the previous run. The steward’s actions will impact how the new annotations are processed.

Egeria’s Open Discovery Framework (ODF) that supports the development and execution of discovery services. The ODF runs in an open metadata discovery server. ODF discovery services use connectors from the Open Connector Framework (OCF) to connect to the data assets and access the known metadata about them.

Return to Overview.


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