Learn About Vocabulary
Use the AI Assistant to explore and clarify the vocabulary elements in your project. This can help ensure consistency and clear understanding across your team. Try prompts like:
  • “Summarize the purpose of this vocabulary.”
  • “List all the bi-directional entity associations in this vocabulary.”


You must create a Vocabulary as part of a rule project. The Vocabulary file opens in the Vocabulary editor and has the extension .ecore.

To create a Vocabulary file:

  1. Select File > New > Rule Vocabulary.
  2. In the Create New Vocabulary wizard:
    1. In the Enter or select the parent folder area, select the rule project and optionally, a folder within it.
    2. In the File name field, enter a name for the Vocabulary file.
    3. Click Finish.

The Vocabulary file is created and appears under the rule project in the Rule Project Explorer view. It is represented by a folder icon image and automatically opens in the Vocabulary editor.