You can delete a matrix model.
Prerequisite
You require the Delete access privilege for the groups in which the items are saved.
In order to restore the status of a database after unintentionally deleting something, please use versioned databases or back up your databases before you delete items.
Procedure
Open ARIS and log in with your user name and password.
Click Application launcher >
Models & Objects.
Move the mouse cursor over the matrix model you want to delete. The More icon is displayed next to the item name.
Click More >
Delete. A confirmation prompt is displayed.
Click OK.
The matrix model is deleted.