Introducing QuickApps for SharePoint® : About QuickApps for SharePoint : Features of QuickApps for SharePoint : Ribbon Groups

Ribbon Groups
A Ribbon group is delivered for each web part that supports the SharePoint and SharePoint Foundation Server Ribbon UI.
The contextual group contains the “Commands” contextual tab for the web part on the page, which in turn, contains different Ribbon groups. When you select a web part, you can access such functions as ezEdit and Help.
 
When multiple web parts are added to the page, different Ribbon tabs are added in the order of the web part appearance on the page. Each tab’s name defaults to the Title property of the web part.
The display name of the tab can be changed using the web part property, Ribbon Appearance. This property allows you to customize the display name for the tab. If this property is filled out, it overrides the web part's Title property. If both of these properties are empty, the default name, “Commands”, is used.
The web part’s ribbon may consists of one or more of the following groups:
 
Table 1. Ribbon Groups