Trustworthy Semantic Web Lecture 13 Knowledge Management E Business Semantic Web Semantic E Business Dr Bhavani Thuraisingham October 2 3006 01 14 19 01 06 2 Outline of the Unit 0 What is Knowledge Management 0 Basic concepts Components and Models 0 Organizational Learning Process 0 Knowledge Management Architecture 0 Secure Knowledge Management and Trust Negotiation 0 Knowledge Models 0 Directions 0 Integration of KM with E Business and Semantic Web 0 Topic for lecture 14 01 14 19 01 06 3 What is Knowledge Management 0 Knowledge management or KM is the process through which organizations generate value from their intellectual property and knowledge based assets 0 KM involves the creation dissemination and utilization of knowledge 0 Reference http www commerce database com knowledge management htm source google 01 14 19 01 06 4 Knowledge Management Components Knowledge Components of Management Components Cycle and Technologies Components Strategies Processes Metrics Cycle Knowledge Creation Sharing Measurement And Improvement Technologies Expert systems Collaboration Training Web 01 14 19 01 06 5 Knowledge Models 0 Level 1 Highest Level Mental models utilized by psychologists Social models e g social network models used by sociologists 0 Level 2 Mid level Models utilized by expert systems Process modeling 0 Level Bottom level Models understood by machines E g rule based frame based etc 01 14 19 01 06 6 Organizational Learning Process s e v i t n e Inc Identification Creation Source Reinhardt and Pawlowsky Diffusion Tacit Explicit Metrics Integration Modification Action also see Tools in Organizational Learning http duplox wz berlin de oldb forslin html 01 14 19 01 06 7 Six Principals of Effective Learning Effective Learning Requires Understanding 1 Mental models paradigms context observation assumptions opinion fact truth 2 Systems Thinking Variation Skills 3 Ability to challenge assumptions 4 Listen to Understand Process 5 Complete observe assess reflection gain understanding design develop theory prediction vision implement test cycle 6 Teach others 01 14 19 01 06 8 Knowledge Management Metrics The Goal of Metrics Measuring Success How am I doing Benchmarking How am I comparatively doing Tracking Improvement Am I getting better Direct future investment technology employees strategy alignment culture incentives One way to ensure your doing worse is to not measure Adapted from Pressman 01 14 19 01 06 9 Learning By Product Measures Papers in Competitive Journals and Magazines Percentage New Technology compared to all Technology Process Cycle Time Employee Surveys Involvement with decisions Recognition for work achieved Access to information Rewarding risk taking Overall Satisfaction Employee Retention Employee Suggestion Process 01 14 19 01 06 10 Knowledge Management Incentive based Approaches Receiver Teacher Positive Incentives Positive Incentives Knowledge Gained Can teach others what is learned Negative Incentives Knowledge Transfer Champion prestige Can improve knowledge Negative Incentives Time Time Unqualified teacher Students not willing to learn 01 14 19 01 06 Knowledge Management Strategies Processes Metrics and Tools Knowledge Management Within and Across Corporations and Agencies Strategies e g Management Plans Policies Data sharing vs Privacy Metrics e g web usage Processes e g best practices Tools e g Semantic Web 11 01 14 19 01 06 12 Knowledge Management Architecture Knowledge Creation and Acquisition Manager Knowledge Dissemination and Sharing Manager Knowledge Representation Manager Knowledge Manipulation Manager 01 14 19 01 06 13 Knowledge Exchange Annotation Engine KEAN Resides on any web accessible knowledge base any intranet www Increases incentive to share information Author gets positive and negative feedback about information that is submitted Feedback system no more publishing documents that disappear into the ether Prestige top rated document views Quality filters steer user towards best information Domain specific instances of KEAN are created Works with Java enabled browser 01 14 19 01 06 14 The Three Versions of KEAN Architecture Version 1 beta version No reuse Two tiered Stored procedures Version 2 newest version GUI reuse via JavaBeans Two tiered JDBC access to database Version 3 final version Logic reuse via Enterprise JavaBeans EJB Three tiered CORBA access to objects 01 14 19 01 06 15 Structure of Version 1 Beta Version of KEAN Stored Procedures PL SQL ORACLE WEB SERVER Html JavaScript Applets ORACLE Thin http client Database tier 01 14 19 01 06 16 Structure of Version 2 Code reuse with a two tier architecture JDBC ORACLE WEB SERVER KeanBeans ORACLE Thick client Database tier 01 14 19 01 06 17 Structure of Version 3 web Server KeanBeans CORBA ORB EJB thin client middle tier RDBMSs and OODBMS server tier 01 14 19 01 06 18 Secure Knowledge Management 0 Protecting the intellectual property of an organization 0 Access control including role based access control 0 Security for process activity management and workflow Users must have certain credentials to carry out an activity 0 Composing multiple security policies across organizations 0 Security for knowledge management strategies and processes 0 Risk management and economic tradeoffs 0 Digital rights management and trust negotiation 01 14 19 01 06 19 Trust Management and Negotiation 0 Design a Trust Model Investigate the current trust models Identify the inadequacies of current trust models and design a model for the semantic web DIVO Components include trust management trust negotiation as well as economic tradeoffs 0 Design a Language for specifying Trust policies Start with XML RDF and Web Rules language and incorporate features for trust management and negotiation 0 Design and develop techniques for enforcing the trust policies Automated Trust Negotiation A attempts to access database D based on access control policies However before A can access D triggers go off and owner of D exchanges credential information with A 01 14 19 01 06 20 Knowledge Management for Coalitions Knowledge for Coalition Export Knowledge Export Knowledge Export Knowledge Component Knowledge for Agency A Component Knowledge for Agency C Component Knowledge for Agency B 01 14 19 01 06 21 Status and Directions 0 Knowledge management has exploded due to the web 0 Knowledge Management has different dimensions Technology Business 0 Tools are emerging 0 Need effective partnerships between business leaders technologists and