Abstract: An enterprise knowledge management and sharing system having a plurality of services to facilitate members of an enterprise to create, capture, organize, refine, promote and/or publish knowledge of the enterprise is disclosed and described herein.

Abstract: Embodiments of plural application implementations in accordance with a unified data model are disclosed herein. A unified data model 102 may comprise contents104, threads 106 of contents, and categories 108 of threads, to which most application data are organized accordingly. Applications 110 may have extended data. Additionally, services 120 are pre-defined/provided to operate on data organized in accordance with the unified data model 102, including services to operate on contents 122, services to operate on threads 124 and services to operate categories 126. In various embodiments, a facility/utility may be further provided to instantiate a security database 130 for storing security settings for all or selected data items organized in accordance with the unified data model 102.