Extending product function : Setting up the IT portfolio management workspace : Setting up the IT portfolio management workspace template : Dependencies and groups
  
Dependencies and groups
Within workspaces, dependencies can exist between modules, attributes, and elements. To tailor the IT portfolio management workspace to your requirements, you must understand the dependencies between attributes and their relationships to criteria and views.
To customize the workspace, use two supporting modules: Attributes and Attribute Groups. When you add, change, or remove attributes that have dependencies, update the information in these two supporting modules.
See
Dependencies in the Attributes module
Dependencies in the Attributes groups module
Setting up the IT portfolio management workspace template