Work items are collected from one or more work item providers for presentation to a workflow participant. A work item provider is typically a workflow management system (“WFMS”), but other providers of work items might exist that generate work items and may or may not have their own local worklist....http://www.google.com.au/patents/US20050033626?utm_source=gb-gplus-sharePatent US20050033626 - Universal worklist service and user interface
