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? Commonality Formats “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