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Versioned Assets

Versioned assets may follow a simple lifecycle where they can just be updated, or they can use a simple workflow where a draft can be prepared, reviewed and approved.  Versions are linked together.  The previous version may simply be a Referenceable if it is created before versioning is activated.   The types for versioned metadata is shown in figure 3.

Existing Base Model

The existing base model appears at this point defining key concepts such as Referenceable, Asset, Infrastructure, Process and DataSet.

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User Identities

Most metadata repositories are run in a secure mode requiring incoming requests to include the requestor’s security credentials.  Therefore we have an identifier for each unique logged on security identity (aka userId).  The UserIdentity can capture this identity.

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The cloud platforms and services model show that cloud computing is not so different from what we have been doing before.  Cloud infrastructure and services are classified as such to show that the organization is not completely in control of the technology supporting their data and processes.

Security Infrastructure

Security infrastructure needs to be embedded in the servers and hosts that support an organization's data and processing.  These classifications are used to identify components that are supporting different security roles.

Networks and Gateways

The network model for open metadata is very simple, to allow hosts to be grouped into the networks they are connected to.  This can show details such as where hosts are isolated in private networks, where the gateways onto the Internet. 

Authoritative Assets

Assets often describe objects in the real world.  They may have multiple names depending on the types of technology used to access them. As such an asset may have multiple identifiers.  The Authoritative Asset supports the de-duplication and consolidation of asset descriptions.  This is shown in figure 4.

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