0010 Base model¶
OpenMetadataRoot is the root entity for all open metadata entity types.
Referenceable is the super type for many of the open metadata entity types. A Referenceable entity is something that is important enough to be assigned a unique (qualified) name within its type. This unique name is often used outside the open metadata ecosystem as its unique identifier. Referenceable also has provision for storing additional properties. This is a set of name-value pairs (i.e. a map) where the values are all strings.
An Asset is a metadata entity that describes a resource (either physical or digital) that is of value and so needs to be managed and governed.
DataSet are examples of Assets.
Asset entity has the following deprecated attributes. Their values have been moved to classifications as shown in the table below. Many Assets are created by their hosting technology and locked read-only to the broader metadata ecosystem (see external metadata provenance for more detail). By moving the governance related information to a classification, it can be maintained by a different service to the Asset's creator.
|Deprecated attribute||Moved to classification|
Infrastructure represents both the physical and digital assets that the organization runs its business on. There is more information on
- 0030 Hosts and platforms
- 0035 Complex hosts
- 0037 Software server platforms
- 0040 Software servers
- 0042 Software capabilities
Process describes a well-defined set of processing steps and decisions that drive a particular aspect of the organization's business. Most
Processes are automated with software (see
DeployedSoftwareComponent) but they may also be a manual procedure. An automated process can be invoked from a remote server through a
DataSet represents a collection of related data. This data does not need to be stored together. The formula property describes the logic used to populate the DataSet. See
DataStore for the
Asset that represents a physical store and the
DataContentForDataSet relationship links the DataSet to the asset(s) that describe the data sources.
More information on assets can be found in Metadata Manager.
Anchors classification is used internally by the open metadata ecosystem to optimize the lookup of the entity at the root of a cluster of elements that represents a larger object. Currently, there is support for objects uniquely "owned" by an entity to store the GUID of that entity.
Finally, the Memento classification identifies that the Referenceable refers to a real-world asset/artifact that has either been deleted or archived offline. The metadata element has been retained to show its role in the lineage of other assets/artifacts. The properties in this classification identifies the archive processing and any information that helps to locate the asset/artifact in the archive (if applicable).