Deleting a Data Model
You can delete one or several data models from your file system.
To delete a data model:
1. Right-click the data model name in the Rules Explorer view and select 
Delete from the context menu. Hold down SHIFT or CTRL to select multiple data models. 2. In the Delete Resources dialog box, do one of the following:
a. To delete the data model, click OK. If you delete a data model that is used in a decision entity, you are prompted to confirm the deletion.
Important:
Deleting a data model that is used in a decision entity invalidates the decision entity.
b. To open a list of all changes to be performed, click Preview. To confirm the changes, click OK.
Important:
You are advised to avoid clearing any of the items on the list. Leaving out a step in the procedure will likely result in a semantically invalid data model.
The data model and all components that are associated with it are deleted from your file system.