Knowledge Management Systems • Week 5 Schedule - Blog use Discussion Weeks Assigned RSS reader (from last week) Semantic Readings Discussion System Install and Configure (1) Semantic Web • “bring structure to the meaningful content of Web pages, creating an environment where software agents roaming from page to page can readily carry out sophisticated tasks for users” (Berners-Lee, 2001) • • • • Meaningful? Content? Agents? Tasks? Semantic Web Elements • • • • • Expressing Meaning Knowledge Representation Ontologies Agents Evolution of Knowledge Expressing Meaning • • • • • • • • Documents for People Information for Systems Keywords and Their Meanings Real World Rules Real World Limitations Extension of the Current Web Decentralized IA Applications - Metainformation Definition - Design Implementation - Interface Research and Development Knowledge Representation • • • • • • • Structured Collections of Information Sets of Inference Rules Automated Reasoning Without Centralized Control Massive Concurrency Coordination Massive Complexity of Interpretations IA Applications - Adapting the Rules for Systems (Displays) - Presenting Results and Actions - XML and RDF Ontologies • • • • • Consistency of Object Classification Taxonomy of Object Uses Navigation Scheme for Information Objects (New) Applications to Utilize Data IA Applications - Defining Ontologies Updating (Correcting & Testing) Ontologies Expressing Ontologies (IIC) Defining Ontologies Use (Privacy++) Agents • Programs That Use Semantic Web Content • More Automated as Systems and Content Support Increases • Digital Signatures • Organized Services • Ontology Exchanges • Agent Interaction (Not) • IA Applications - Communicating Services - Enabling Agents Evolution of Knowledge • Extend from Virtual to Physical World - Other Devices & Platforms Composite Capability/Preference Profile Complex Relationships and Interactions Extend to Individuals (Characteristics) Locations (Temporal) IA Applications • Designing New Interfaces and Content • Organizing Mappings of Virtual and Physical Interactions • Coordinating the Semantic Web Design Process Semantic Web Challenges • The Biggest Database Ever • The ONLY Database? - Individual/Group IM - Individual/Group KM • Decentralized or Partitioned? - Concurrency? (Time) - Currency? (Money) • Knowledge Representation - Computational Issues - Cultural Issues - Classification Issues • IA becomes Transformed to Information Architecture for People and Agents • What about “People Readable” Information? Semantic Web from 50K Feet • “Full potential” - For who? - For what? • Design Principles - Simplicity Modularity Decentralizaion Tolerance East transformation (least power language) Test independent invention (others do the same) Semantic Web Principles • Everything is a link (URI) - Permanence - MIME types • Everyone/thing is a Web server? • Extended Control - Individual/Group • Form(at) and Content seperated • Function is form(at) • Translation – Transition - Archives Conversion - Forever Bootstrapping? Network is work & design metaphor - Hypertext • Storage medium • Access medium - Collaboration • Information • People - Network Metadata? • Individual/Group • Devices • Situations Knowledge Org Systems • Isn’t this everything? - “Information system” - Database • Commonality - Tasks (applications) - Terms (thesaurus) - Technology (media, mediums) • Formats • Functions Framework for Semantic Web KM • • • • • • Maybe the best platform The only platform? Suspiciously like a RDBMS framework We need abstractions We need system designs Conversion from existing systems - Tools make the standards - People choose the tools RSS Readers • • • • • What is the best design? Functions Interfaces Individual Users Collaboration? Table 1 Table 2 Enterprise KM Components