In BSCW, the events related to an object are grouped into five event types. In the object entries of a folder page, each type is represented by a specific event icon.
   Create event: The 
object (document, folder, URL etc.) is new for you, you have not seen it before. 
This event may be caused by yourself or another member of the workspace. 
   Change event: The 
object has been somehow modified, e.g. renamed or edited. Adding new 
versions to a document and modification of metadata also belong to this event 
type. 
   Move event: The 
object has been moved from one location to another. Move events are generated 
when a document, folder, etc. is cut, pasted, deleted, undeleted, 
archived, extracted or converted.
   Events inside: 
There are recent change events for objects somewhere within this folder, 
including its subfolders and the objects contained therein. This icon is only 
displayed for folders. Events of this type are only represented as event 
icons and are not transmitted by the other event services.
   Read event: The 
object has been accessed without modification, e.g. has been read downloaded or 
copied. BSCW lists only the most recent read event per 
user.       
As far as event icons are 
concerned, read events are propagated to higher-level folders and are 
included in their event icons.