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Concept types

Every Concept in your Data Graphs account is assigned a type or class by you. The type describes the semantics of the class of Concept (such as Person, Animal, Organisation, Football Team etc). 

The Concept type confers characteristics upon your data. It also enables you to query, navigate and facet data by type. For example, in the federated search screen there is a type facet presented by default – as shown in the screenshot.

This type facet shows how many Concepts of each type exist in your Datasets, entire knowledge graph or reference data.

By selecting one of the types you can restrict the search results to only Concepts of that type, regardless of which Dataset the Concepts might be present in.

Concept relationships

Concept types are used when creating a property that references or links to another Concept in your domain model. If you specify a specific type in this relationship, Data Graphs understands the range semantics of the relationship and is able to validate and constrain the Concept editor to only allow Concepts of the type you selected.

Managing Concept types

While you can view and manage Concept types within each Dataset schema, there is a dedicated screen for viewing and managing all Concept types accessible from the main account menu in the navbar called Manage Types. This screen lists the types across all your Datasets and lets you view the class hierarchy you have created through subclassing.

You can delete an unused Concept type from right hand side bar of the Manage Types screen: