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## 2.1.1 Use Case Definition

This topic describes the information about the use case definition.

The user cases are defined by the business domain. The required information to be extracted from the documents is driven by business consideration against the context of use case being defined.

The tags or entities are required for annotating or tagging the information in a source document to create training files for use case model training. These tags or entities are always driven by business considerations for a particular usage case.

The use case definition maintenance screen allows the user to define use case(s) and maintain specific list of tags for the use case.

This topic contains the following subtopics:

- View Use Case Definition
  This topic describes the systematic instructions to view the list of defined use cases.
- Tag Maintenance
  This topic describes the systematic instructions to define use cases and maintain entities or tags for the use case.

Parent topic: Toolkit