Collaboration I
Collaboration implies sharing of electronic objects and is needed in asynchronous and synchronous modes
Asynchronous mode is
- shared web pages and documents
- electronic mail
Notification and event update service
- one associates with each group activity a “magic ID” (barcode)
- every digital object associated with this activity registers itself when it comes on line with some registry (registry can be distributed). A given object may have multiple barcodes attached to it
- Users or Portals (PSE’s) register interest in certain barcodes
- The (Gateway) event service notifies registered observers when a digital object of interest becomes available
- Further events are shared when object changes state