Common Desktop Environment: Style Guide and Certification Checklist

Expert Activation








If your application supports expert activation, expert actions exist only as shortcuts to application features that are available through another mechanism.  

Expert activation, using mouse double-clicking on buttons, provides a convenient way for experienced users to perform certain tasks quickly. However, new users and keyboard-only users need to be able to perform the same tasks. 



When the focus is on a button used for expert activation, no default action is available, unless the default and expert actions are the same.  

This rule minimizes possible confusion between default and expert activation. 



If a component with an expert action is selectable, activating the expert action first selects the component and then performs the expert action.  

A user needs to be able to select a component, even if it has an expert action associated with it.