This document proposes a content model and API to unify access to different types of content like wikis, RDF, binaries, and more. It aims to be used in projects like NEPOMUK, WAVES, and WIF. The model represents content at different levels of granularity from words to documents. Content can be annotated with semantic statements and metadata. All content is addressable and versioned. The API provides functions for basic CRUD operations as well as fulltext search and auto-completion support through a keyword index.

1. A content model/API which unifies Wikis, RDF, binaries, CDS, iMapping, WIF To be used in NEPOMUK, WAVES, WIF and beyond Max Völkel (FZI) with a lot of help from Mikhail Kotelnikov (Cognium Systems), Tim Romberg (FZI), and Heiko Haller (FZI) 8.3.2007

4. Part I: Wikis

11. Part II: Beyond Wikis

14. Building Blocks - Who calls whom? To simplify: We can use RDF both as Triple Model and as String Store… Binary Store URI  stream + mimetype Versioning per resource Triple Model Metadata: (URI, URI, URI) Versioning per model Keyword Index URI  fulltext index Content Server String Store URI  String (can contain XHTML) Versioning per resources

24. Part III: Getting technical

29. Data Model Repository Mime-type Addressable Triple Item Content Any binary or character stream URI User ItemVersion 1 root item URI URI URI URI 1:1 1:* URI ModelVersion URI 1 current version User Change date Change date 0..1 current version. No current version: Item does not exist

30. Simplified Data Model – no versioning Repository Mime-type Item Content Any binary or character stream URI 1 root item 1:1 1:* 0..1 content Addressable Triple URI URI URI URI User Change date

34. APPENDICES

35. Requirements from different sides

36. WAVES (sorry it‘s german) SWE-spezifische Funktionen Suche Rechte- verwaltung Orgamodell Rollen, Gruppen, .. Artikulieren, Vernetzen/Referenzieren Restrukturieren Überarbeiten Wissen kontextabh. automatisch anbieten (Freie) Sichten bilden Desktop-Integration E-Mails / Office / Browser Synchronisation (Offline, Sharing) SW-Projekt- Cockpit Polarion Anforderungs- verwaltung Meeting- Protokolle essentiell wichtig zukünftig setzt voraus Grundfunktionen Weitere allgemeine Funktionen Persönlicher Wissensspeicher

38. A WIF logo WIF

41. OLD slides kept here as a backup

43. First Try: Semantic Wiki Semantic Wiki Syntax DOM XHTML HTTP RDFa RDFa API WIF using WMO WAF = n WIF pages WOM + RDF Serialisation/ Standard Java API Conceptual model Structured document Semantically annotated doc. XML Wiki application Semantic Wiki Syntax Semantic Wiki Syntax User interface Semantic wiki page Complete sem. wiki content WAF API Semantic Wiki Semantic Wiki = existing Collaboration-API WEM Content Communication Knowledge model 1 RDF Model+ n WIF CDS API Exchange-API iMapping SwingClient