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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 you 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 understand 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 al the types across all your Datasets, and also lets you view the class hierarchy you have created through subclassing.

If you want to delete a specific Concept type that is not used you can do it from right hand side bar :