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Comment: Added Jira link and new figure 2

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https://issues.apache.org/jira/projects/ATLAS/issues/ATLAS-2246

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In order for the Open Metadata Repository Services (OMRS) to be able to query and distribute metadata from many different types of metadata repositories, it needs a common interface for accessing these metadata repositories.  Most metadata repositories today have an external API already, so OMRS uses the Open Connector Framework (OCF) to create a client-side common interface for metadata repositories.   This interface is called the OMRS Connector API.   An OCF Connector is a java client for accessing an asset.  In the case of the OMRS Connector, the asset being accessed is a metadata repository. Figure 1 shows how the OMRS Connector extends the OCF Connector API to add the method to retrieve the metadata collection object.

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