Actions
Interactive UI elements such as buttons are normally used for initiating some action, such as finalizing input in forms.

Interaction
Include buttons and toolbars as interactive elements.
Business decisions
Actions may depend on the results of a BPM workflow.
Conditions
If and how an action is available may depend on results of function decisions.
Import/Export
Access external sources directly utiliting data interchange.
Effective
Reuse default toolbars in different view models or create specific ones.
Parameter
Use function library to define conditions.