COMP 3710 / 7580: Electronic Transformation in Business
Fall 2008 (Last update: Nov 30, 2008.)

Announcements

• Final Paper Due: Dec 5, 24:00
  • Submission Checklist
    • Send final paper with presentation and external source of figures if they are not embedded.
    • Include your in email subject [comp7580] or [comp3710]
    • For all the filenames, name it with: "comp7580-<YourName>-<StudentNo>-<BriefTitle>" or "comp3710-<YourName>-<StudentNo>-<BriefTitle>"
    • Include your permanent email address for possible contact for publication after your graduation
  • Content Final Touch
    • Did you apply contents presented in this course? Quick fix:
      • Add alert / event management component in your system. Tabulate and discuss some important alerts and events, and their handling.
      • For CRM, what data are available for analysis? What signals (events / alerts) can be arrived at, and then what are the actions? Tabulate and discuss some important ones.
    • Discuss the advantages and drawbacks of your work with respect to the major system stakeholders
    • Related Work
• Exam Schedule - Dec 19, 9:15-12:15
  • Open Book problem-solving type
    • Questions arranged in 9 parts in total (long structured questions, but not essay type).
    • Students need to give solutions / answers with justifications and explanations applying the knowledge from this course based on the information and context given in the exam questions.
    • The questions are comparable to Q.2 and Q.3 of http://www.comp.hkbu.edu.hk/~comp7640/assignment.htm (though ours slightly longer and more open ended). But of course, you will not be asked to draw ER diagrams.
  • Bring along the course materials and any other reference you like
    • you may annotate your slides or papers printout.
  • Critical understanding and application of the main papers and concepts presented (bold type in the section Course Materials).
    • The main case study (Chiu, Cheung, & Till, 2008) shall be the case background for the whole exam, as promised in the lecture.
    • The application of knowledge from the other course materials towards the main case study is expected in the exam (especially those in bold type).
  • Slight difference in the exam paper for COMP 3710 / 7580.
• Draft Presentation Slides Submission
  • Submit to lecturer - Postgraduates by Nov 23 noon; Undergraduate by Nov 30 noon
  • Presented by lecturer during lecture on the next day for feed back to you (because too many students in class)
  • Include in your email subject: [comp7580]slides or [comp3710]slides and student number
  • Working on the slides first instead of the paper helps you better organize your ideas and paper structure.
  • Submission with your draft final paper is also encouraged.
• Related work search including those in Chinese are available at: http://scholar.google.com.hk/
• Switching of the topic order due to numerous request for paper writing support.
• Blog for this course is set up: http://comp7580.blogspot.com/
  Welcome to post your comments and follow up questions.
• COMP 3710 / 7580 are in two different grading pools. The marking standards will probably be around the same though I shall adjust if indeed necessary.
• Project Proposal - only need: Title / abstract / draft introduction and best with some related work / other section and subsection headings or outline - postponed for one week (early October) because of holidays.
• Exam weight (70%) updated according to new syllabus of the department.
• IT infrastructures / systems analyst and design as well as emerging technology application in advanced case studies are the theme of this course.
• Most cases are based on publications of the lecturer in order to provide first hand information and in-depth understanding.
• In Lecture 2, I shall present the main case study first before the enabling technologies. Note that technical details of those enabling technologies (as opposed to COMP7770) are not the focus of this course. Technical details are for references and illustration - so they will not be examined.
• The contemporary approach is to achieve both information integration and process integration via service-oriented integration, so called "Service-Oriented Architecture" (SOA).

Course Description (Academic Calendar)

This course covers the use of technology in many aspects of a business, with particular emphasis on concepts and practices for modeling, specifying, and integrating within-enterprise and B2B business processes. How the business processes related to customer relationship management, enterprise resource planning, supply chain management, etc., could be transformed in the Internet era will be covered. Some case studies related to e-transformation in Business will also be discussed. Students after taking this course should be able to 1) understand how e-technologies can facilitate process/application integration with and across enterprise, and 2) evaluate the cost and benefit that e-transformation can bring to different business processes of an enterprise.

Course Objectives (Academic Calendar)

To introduce the use of technology in many aspects of a business, with particular emphasis on concepts and practices for modeling, specifying, and integrating within-enterprise and B2B business processes. To explore how information technology transforms the business processes related to customer relationship management, enterprise resource planning, supply chain management, etc. Students after taking this course should be able to 1) understand how e-technologies can facilitate process/application integration within and across enterprise, and 2) evaluate the cost and benefit that e-transformation can bring to different business processes of an enterprise.

Learning Outcomes (Department syllabus)

• Knowledge
  1. Illustrate the concepts and practices for e-business adoption to support enterprise integration
  2. Describe application integration technologies and standards including middleware technologies
  3. Identify emerging technologies in e-business for business processes including supply chain management, enterprise resource planning and customer relationship management
• Professional Skill
  4. Apply the models of e-business for enterprise integration
  5. Integrate the emerging technologies in e-business to support business processes
  6. Apply emerging technologies to business cases
• Attitude
  7. Aware the appropriate emerging technologies for e-business based on the characteristics of business processes

Course Information

• Lecture Venue: Mondays, 1:30-4:20pm, Rm LMC512
• Course Webpage: http://www.comp.hkbu.edu.hk/~comp7580/

Lecturer

• Dr. Dickson K.W. CHIU (Ph.D., HKUST; SMIEEE; SMACM; Life MHKCS)
• Email: dicksonchiu@ieee.org Include "[COMP7580]" in the subject for easy indexing and prompt actions. In case you cannot get a reply within 48 hours, please resend as I might have missed that.
• Phone consultation: Leave your phone number and question by email, and I'll call back.

• Dr. Dickson K.W. Chiu received the B.Sc. (Hons.) degree in Computer Studies from the University of Hong Kong in 1987. He received the M.Sc. (1994) and the Ph.D. (2000) degrees in Computer Science from the Hong Kong University of Science and Technology, where he worked as a Visiting Assistant Lecturer after graduation. He also started his own computer company while studying part-time. From 2001 to 2003, he was an Assistant Professor at the Department of Computer Science, the Chinese University of Hong Kong. He was a Visiting Assistant Professor in 2006 at the Computing Department, Hong Kong Polytechnic University for teaching M.Sc. courses. With his solid industrial experience and cross-disciplinary research, he has taught a wide range of subjects at various levels. His research interests are in information systems, information technologies, service computing, and e-/m-business with a cross-disciplinary approach, involving Internet technologies, agents, workflows, software engineering, information system management, security, and databases. His research results have been published in over 100 papers in international journals and conference proceedings, including practical results of many master and undergraduate projects. He received a best paper award in the 37th Hawaii International Conference on System Sciences (HICSS) in 2004. He serves as Associate Editor of the Engineering Letters and Editorial Board Member of the International Journal of Web Service Research (SCI-E), and International Journal of Software Architecture. He co-founded several international workshops and co-edited several special issues in journals. He also served as a mini-track co-chair in the Decision Technologies track of HICSS, a theme (Service Intelligence and Service Science) co-chair in the International Conference of Machine Learning and Cybernetics, and program committee member in many international conferences. Dr. Chiu is a Senior Member of the ACM, a Senior Member of the IEEE, and a life member of the Hong Kong Computer Society. 

Assessment

• Individual Course Paper and Presentation (guidelines) (30%)
  • Topic Discussion (Title and abstract): ASAP
  • Project Proposal (Title / abstract / draft introduction and best with some related work / other section and subsection headings) - Early October
  • Mid-term Draft Submission - End of October (for milestone and feedback purpose)
  • Final submission (paper and .ppt) - 1 week after the last presentation
• Final Exam (70%) - Open book case study problem solving type.

References

• Dave Chaffey, E-Business and E Commerce Management, 2nd ed., Prentice Hall (website)
  • Main Reference - especially for clarifying basic concepts, terms, and jargons
• Efraim Turban et al., Electronic Commerce 2008: A Managerial Perspective, Pearson/Prentice Hall, 2008. (website)
• Erl, Thomas, 2006, Service-Oriented Architecture: Concepts, Technology, and Design, Prentice Hall. (website)
• e-Enterprise: Business Models, Architecture, and Components, Faisal Hoque, Cambridge University Press, 2000
• Jilovec, N., 2004, EDI, UCCnet & RFID: Synchronizing the Supply Chain, 29th Street Press.
• Ballou, R.H., 2003, Business Logistics Management, 5th edition, Prentice Hall.
• Journals
  • Journal of Electronic Commerce Research, Springer.
  • Service-oriented Computing and Applications, Springer.
  • International Journal of Electronic Business, Inderscience Publisher.
• Conferences
  • IEEE International Conference on e-Business Engineering (ICEBE)
  • International Conference on Electronic Commerce (ICEC)
  • IEEE International Conference e-Technology, e-Commerce and e-Service (EEE)
  • Hawaii International Conference on System Sciences (HICSS)(free digital library)
  • IEEE International Conference on Services Computing (SCC)
  • IEEE International/European Conference on Web Services (ICWS)
• Writing IT Papers - my summary (.ppt)
• Technology Reference Slides
  • BPEL (.ppt)
  • eXtended Markup Language (XML) and enterprise data exchange (.ppt)
  • Recommended Reading: "The XML Shockwave" (pdf)
  • Web Services and Service-oriented architecture (.ppt)
    • Web Wrapper - WebXcript: D.K.W. Chiu, Danny Kok, Alex Lee, and S.C. Cheung. Modeling and Integrating Legacy Sites into Web Services with WebXcript, International Journal of Cooperative Information Systems (IJCIS),  (paper)(ppt)

Course Materials (Slides also subjected to update)

• Basic concepts of e-transformation in enterprise (.ppt) (updated Aug 30)
• Business process management and workflow (.ppt)
• Enterprise process integration with contemporary technologies: supply chain management, exception handling, and CRM
  • Main case study of the course: D.K.W. Chiu, S.C. Cheung, S. Till, 2008, Enhancing E-service Collaboration with Enforcement and Relationship Management: a Methodology from Requirements to Event Driven Realization, under revision. (paper)(ppt)
• Transforming and Improving Business Process with Alerts and Exceptions: A Middleware Approach - Summarized Presentation (ppt)
• E. Kafeza, D.K.W. Chiu, S.C. Cheung, and M. Kafeza. Alerts in Mobile Healthcare Applications: Requirements and Pilot Study, IEEE Transactions on Information Technology in Biomedicine, 8(2):173-181, June 2004. (paper)
• D.K.W. Chiu, Benny Kwok, Ray Wong, M. Kafeza, S.C. Cheung, E. Kafeza, P.C.K. Hung. Alerts in Healthcare Applications: Process and Data Integration. International Journal of Healthcare Information Systems and Informatics (IJHISI), 2009 (accepted). (paper)
• D.K.W. Chiu, Samuel P.M. Choi, Minhong Wang, Eleanna Kafeza. Towards Ubiquitous Communication Support for Distance Education with Alert Management. Educational Technology & Society, 11(2): 92-106, 2008. (SSCI) (paper)(EEE05 conference)(ppt)
• Dickson K.W. Chiu, Nick L. L. Ng, LAI Sau Chan, and Patrick C. K. Hung. Automating Tendering Processes with Web Services: A Case Study on Building Construction Tendering in Hong Kong, Group Decision and Negotiation Meeting (GDN 2007), Mt. Tremblant (Montreal), May 14-17, 2007. (journal submitted)(ppt)
• Mandy Y.S. Tong and D.K.W. Chiu. Alert Driven Process Integration and Exception Handing: A Case Study on Audit Confirmation with Web Services, IEEE Joint Conference on E-Commerce Technology (CEC'07) and Enterprise Computing, E-Commerce and E-Services (EEE '07), Tokyo, pp. 469-476, July 2007. (paper)(ppt)
• Cherrie W.W. Ng and D.K.W. Chiu. e-Government Integration with Web Services and Alerts: A Case Study on an Emergency Route Advisory System in Hong Kong, 39th Hawaii International Conference on System Sciences (HICSS39), Jan 2006. (paper)(ppt)
• See other published student papers below.
• Customer relationship management (CRM) and Protection Issues
  • D.K.W. Chiu, Wesley C. W. Chan, Gary K. W. Lam, S. C. Cheung and Franklin T. Luk. An Event Driven Approach to Customer Relationship Management in an e-Brokerage Environment, 36th Hawaii International Conference on System Sciences, Jan 2003. (paper)(.ppt) 
  • Donald S.F. Wong and D.K.W. Chiu. Collaborative Workflow Management with Alerts: An Integrated Retailing System for Garments Brands, 2007 IEEE International Conference on e-Business Engineering (ICEBE), pp. 433-438, Hong Kong IEEE Press, Oct. 2007. (paper)(ppt)
  • P.C.K. Hung, D.K.W. Chiu, W.W. Fung, W. Cheung, Raymond Wong, S.P.M. Choi, E. Kafeza, James Kwok, J. Pun and V.S.Y. Cheng, 2006. End-to-End Privacy Control in Service Outsourcing of Human Intensive Processes: A Multi-layered Web Service Integration Approach, Information Systems Frontier, 9(1):85-101, March 2007. (paper)(ppt)
  • (reference) D.K.W. Chiu, P.C.K. Hung and Kevin Kwok. Financial Enterprise Content Management: Integration and Control, under revision. (.doc)(.ppt)
• Intelligence Transformation and Semantic Web Application (optional topics depends on time)
  • D.K.W. Chiu, J.K.M. Poon, W.C. Lam, C.Y. Tse, W.H.T. Siu, W.S. Poon. How Ontologies Can Help in an E-marketplace, European Conference on Information Systems 2005 (ECIS 2005), May 2005 (paper)(ppt)
  • D.K.W. Chiu, S.C. Cheung, H.F. Leung, Jan 2006. Mobile Workforce Management in a Service-Oriented Enterprise: Capturing Concepts and Requirements in a Multi-Agent Infrastructure, In: Enterprise Service Computing: From Concept to Deployment. Enterprise Service Computing: From Concept to Deployment, edited by Robin Qiu, Idea Group Publishing, 2006. (paper)(ppt)
  • D.K.W. Chiu, Yves T.F. Yueh, Ho-fung Leung, Patrick C.K. Hung. Towards Ubiquitous Tourist Service Coordination and Process Integration: a Collaborative Travel Agent System with Semantic Web Services Information Systems Frontier, 2008. DOI:10.1007/s10796-008-9087-2 (paper)
• Enterprise Resources Planning and Logistics (See Ballou's text)
  • Supply Chain Management and Logistics (.ppt)
  • Inventory Management and Procurement (.ppt)
  • Reference: Transportation (.ppt), Demand and Forecasting (.ppt)
• Mobile transformation
  • D.K.W. Chiu, S.C. Cheung, E. Kafeza, H.F.Leung, 2004, A Three-Tier View Methodology for adapting M-services, IEEE Transactions on Systems, Man and Cybernetics, Part A, 33(6): 725-741. (paper)(ppt)
  • D.K.W. Chiu, Dan Hong, S.C. Cheung, V.Y. Shen, and E. Kafeza. Ubiquitous Enterprise Service Adaptations Based on Contextual User Behavior. Information Systems Frontier, 9(4):343-358, 2007. (paper)
    • Context in Ubiquitous Computing - Dan Hong and D.K.W. Chiu, Requirements Elicitation for the Design of Context-aware Applications in a Ubiquitous Environment, ICEC 2005, Xian, China, August 2005. (paper)(ppt)
    • D.K.W. Chiu, D. Hong, S.C. Cheung, and E. Kafeza. Adapting Ubiquitous Government Services with Context and Views in a Three-Tier Architecture, 40th Hawaii International Conference on System Sciences (HICSS40), Jan 2007. (paper)(ppt)
• Middleware for information and process integration
• Q. Li, D.K.W. Chiu,  Z. Shan, P.C.K. Hung, S.C. Cheung, M. P. Yang, 2008, Service Composition and Interaction in an SOC Middleware Supporting Separation of Concerns with Flows and Views, Journal of Database Management, conditionally accepted. (paper)(ppt)(to be updated)
• Summary and Outlook
• Student Project Presentation

Previous Best Student Course Papers from related course accepted for publication:

1. Cherrie W.W. Ng and D.K.W. Chiu. e-Government Integration with Web Services and Alerts: A Case Study on an Emergency Route Advisory System in Hong Kong, 39th Hawaii International Conference on System Sciences (HICSS39), Jan 2006. (paper)(ppt)
2. Anthony C.Y. Lam and D.K.W. Chiu. Cooperative Brokerage Integration for Transaction Capacity Sharing: A Case Study in Hong Kong, HICSS39, Jan 2006. (paper)(ppt)
3. Gordon K.T. Lau, D.K.W. Chiu and P.C.K. Hung. Web-service Based Information Integration for Decision Support: A Case Study on e-Mortgage Contract Matchmaking Service, HICSS39, Jan 2006. (paper)(ppt)
4. Hing-Sum Chan, D.K.W. Chiu, P.C.K. Hung and H.F. Leung. Credibility Relationship Management in a Web Service Integration Environment, 4th ICIS Workshop on e-Business, Las Vegas, Dec 10, 2005. (paper)(ppt)
5. Allen K.L. Lam, D.K.W. Chiu, and P.C.K. Hung. Enhancing Availability of Information and Towards Freedom of News Distribution: Supporting Small-scale News Agencies with a Web-Service Infrastructure. (paper)
6. Edward W.Y. Ho, D.K.W. Chiu and P.C.K. Hung. Alert Based Monitoring of Stock Trading Systems, 30th IEEE Annual International Computer Software and Applications Conference (COMPSAC), Chicago, Sept 2006. (paper)
7. Gilbert H. L. Luk, Dickson K.W. Chiu, and Ho-fung Leung. Web-service Based Human Resource Recruitment by Using Matchmaking Decision Support, 1st International Workshop on Service Intelligence and Service Science (SISS 2006), Hong Kong, Oct 2006. (paper)(ppt)
8. Trewina P. Y. Leung and Dickson K.W. Chiu. Alert-driven E-Government Service Management: A Case Study on Road Maintenance Management System, 2006 IEEE Asia-Pacific Services Computing Conference (APSCC 2006), Guangzhou, China, Dec 2006. (paper)(ppt)
9. Brenda Y. Hon and Dickson K.W. Chiu. An Integration of Web Service and Workflow to a Wealth Management Order Placement System: A Case Study of International Brokerages, 2006 IEEE Asia-Pacific Services Computing Conference (APSCC 2006), Guangzhou, China, Dec 2006. (paper)(ppt)
10. Nick L.L. Ng, D.K.W. Chiu, and P.C.K. Hung. Tendering Process Model (TPM) Implementation for B2B Integration in a Web Services Environment, 40th Hawaii International Conference on System Sciences (HICSS40), Jan 2007. (paper)
11. Raymond C.M. Lee, K.P. Mak, and D.K.W. Chiu. Enhancing Workflow Automation in Insurance Underwriting Processes with Web Services and Alerts, HICSS40, Jan 2007. (paper)(ppt)
12. Jenny Y.Y. Wong, K.P. Mak, and D.K.W. Chiu. Effective e-Government Process Monitoring and Interoperation: A Case Study on the Removal of Unauthorized Building Works in Hong Kong, HICSS40, Jan 2007. (paper)(ppt)
13. Yves T.F. Yueh, D.K.W. Chiu, Ho-fung Leung, Patrick C.K. Hung. Towards Ubiquitous Tourist Service Coordination and Process Integration: a Collaborative Travel Agent System with Semantic Web Services Information Systems Frontier, 2008. DOI:10.1007/s10796-008-9087-2
14. D.K.W. Chiu, Yves T.F. Yueh, Ho-fung Leung, Patrick C.K. Hung. A Virtual Travel Agent System for M-Tourism with a Web Service Based Design and Implementation. IEEE 21st International Conference on Advanced Information Networking and Applications (AINA-07), Niagara Falls, Canada, pp. 142-149, May 2007.
15. Alan Y. S. Chiang, D.K.W. Chiu, and Patrick C. K. Hung. Providing More Customized Services for Online Games Using Service Oriented Architecture: A Case Study “Mankind,” Workshop on Network-based Virtual Reality and Tele-existence, with AINA 2007, pp 1007-1012, IEEE Press.
16. Mandy Y.S. Tong and D.K.W. Chiu. Alert Driven Process Integration and Exception Handing: A Case Study on Audit Confirmation with Web Services, IEEE Joint Conference on E-Commerce Technology (CEC'07) and Enterprise Computing, E-Commerce and E-Services (EEE '07), Tokyo, pp. 469-476, July 2007. (paper)(ppt)
17. LAI Sau Chan, D.K.W. Chiu, and Patrick C. K. Hung. e-Tendering with Web Services: A Case Study on the Tendering Process of Building Construction, 2007 IEEE International Conference on Services Computing (SCC 2007), Salt Lake City, Utah, pp. 582-588, July 2007.
18. Dickson K.W. Chiu, Nick L. L. Ng, LAI Sau Chan, and Patrick C. K. Hung. Automating Tendering Processes with Web Services: A Case Study on Building Construction Tendering in Hong Kong, Group Decision and Negotiation Meeting (GDN 2007), Mt. Tremblant (Montreal), May 14-17, 2007.
19. Frank K.W. Cheong, D.K.W. Chiu, S.C. Cheung, and Patrick C. K. Hung. Developing a Distributed e-Monitoring System for Enterprise Website and Web Services: An Experience Report with Free Libraries and Tools, IEEE 2007 International Conference on Web Services (ICWS 2007), Salt Lake City, Utah, pp. 1008-1015, July 2007. (paper)(ppt) 
20. Winnie N.Y. Yan, and D.K.W. Chiu. Enhancing E-Commerce Processes with Alerts and Web Services: A case study on Online Credit Card Payment Notification. International Conference of Machine Learning and Cybernetics (ICMLC 2007), IEEE Press, Hong Kong, pp. 3831-3837, August 2007. (book chapter)(ppt)
21. Jason C.S. Chung, Dickson K.W. Chiu, and E. Kafeza. An Alert Management System for Concrete Batching Plant. 12th International Conference on Emerging Technologies and Factory Automation, Patras, Greece, pp. 591-598, Sept. 2007. (paper)
22. Donald S.F. Wong and D.K.W. Chiu. Collaborative Workflow Management with Alerts: An Integrated Retailing System for Garments Brands, 2007 IEEE International Conference on e-Business Engineering (ICEBE), pp. 433-438, Hong Kong IEEE Press, Oct. 2007. (paper)(ppt)
23. Vincent C.T. Chan, D.K.W. Chiu, Stephanie Chow, and Patrick C. K. Hung. e-Monitoring of Outsourcing IS Project in Financial Institutions: A Case Study on Mandatory Provident Fund Projects in Hong Kong. 2007 IEEE International Conference on e-Business Engineering (ICEBE), Hong Kong, IEEE Press, pp. 460-465, Oct. 2007. (paper)(ppt)
24. C.K. Lee and D.K.W. Chiu. Ontology Based Personalized Service in E-marketplaces: A Case Study in a Used Car Matching System. 4th International Conference on Innovations in Information Technology, Dubai, pp. 631-635, Nov. 2007.
25. Drake T. T. Lin and D.K.W. Chiu. Alert Notification and Resource Allocation for Disease Outbreak using Web services. 4th International Conference on Innovations in Information Technology, Dubai, pp. 551-555, Nov. 2007.
     

*** Useful links ***

Java Web Services Programming Notes (for your reference) (.ppt)

Digital Libraries

• IEEExplore (full article accessible only in campus / VPN)
• ACM Digital Library (full article accessible only in campus / VPN)
• Lecture notes in Computer Science (LNCS) (full article accessible only in campus / VPN)
• Science Direct (only those subscribed by the Univeristy is fully accessible in campus / VPN)
• HICSS Conference Proceeding

HTML tutorials: (do a web search for "HTML tutorial" for more stuff...):

• http://www.davesite.com/webstation/html/ (basic tutorial) 
• http://www.mcli.dist.maricopa.edu/tut/   (with some advanced stuffs) 
• http://htmlprimer.com/ (with some advanced stuffs) 
• http://www.webspawner.com/cc/html/alpha.htm (HTML Cross Reference) 

SOAP and Web services:

• http://www.xmethods.net/
• http://www.soapclient.com/

Paper Writing

• A Plus Research and Writing 
• The Nuts and Bolts of College Writing
• The Elements of Writing Style (by William Strunk Jr.)
• How (and How Not) to Write a Good Systems Paper (by Roy Levin and David D. Redell)
• Writing Good Software Engineering Research Papers, by Mary Shaw 
• Prof S.C. Cheung's Collection

XML tutorials:

• http://www.zvon.org
• http://www.w3schools.com/

Many tutorials:

• http://webdevelopment.developersnetwork.com/
• http://www.wdvl.com/
• http://www.eborcom.com/webmaker/
• http://www.w3schools.com/
• http://www.bbc.co.uk/languages/

Online Dictionary: www.webster.com, www.dictionary.com

UML fun: pdf

Distributed OO Programming: ppt

Basic Internet Security: ppt