In BSCW an action may be triggered by selecting a menu entry or clicking the button that represents the action (in the Web-based user interface and in JBrowser) or by choosing the action from the context menu of the object involved (see 3.2.4).

Menu entries and buttons may take four forms:

1. In the top menu bar  File    New    Document  

2.  Rename   in an object's action menu

3. as a link in the navigation bar: <Your user name>

4. as an icon in the object´s entry: e.g.   showing the group of members of a workgroup

The actions triggered by buttons like in 3. and 4. are straightforward: open and display a specific page or download a document. For the icons in this class of buttons see section 4.16.

The remainder of this section will focus on the actions triggered by menu entries like in 1. and 2.

In the Web-based user interface, the buttons discussed here are grouped together in four positions:

• the top menu bar of a folder page, discussion page, workgroup page etc.;
• the selection menu bars for selected objects in a folder page, discussion page, workgroup page etc.;
• the action menus displayed by clicking   displayed at the righthand side of your object entry

The action menus available in these places - thus, which actions you may perform - depends on several factors:

• the level of proficiency that you have set in your preferences (see 4.2.4);
• the role (i.e. access rights) you have for a folder and for the objects it contains (see 4.7).