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Chapter 3

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Chapter 3

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  1. Chapter 3 Selecting the Technology

  2. Agenda • Internet Technology • Architecture • Protocol • ATM • IT for E-business • Selection Criteria • Platform • Middleware • Tools

  3. Agenda • Internet Technology • Architecture • Protocol • ATM • IT for E-business • Selection Criteria • Platform • Middleware • Tools

  4. Architecture • Nodes • End-notes (clients, servers) • Intermediary nodes (traffic forwarding) • Organizations • Standards: Internet Engineering Task Force (IETF) • Management: Internet Engineering Steering Group (IESG) • Policy and practice: Internet Society (ISOC) • Web standard: World Wide Web Consortium (W3C)

  5. Agenda • Internet Technology • Architecture • Protocol • ATM • IT for E-business • Selection Criteria • Platform • Middleware • Tools

  6. Protocol • Internet Protocol Suite (IPS) or TCP/IP • OSI/ISO • Link layer • Network layer • Transport layer • Application layer

  7. Link Layer • Function • Nodes connection to communication channels • Protocol • Fiber Distributed Data Interface (FDDI) for Ethernet • Point to Point Protocol (PPP) for token ring

  8. Network Layer • Function • Data addressing • Transmission of information • Multi-casting • Audio and video broadcasts • Protocol • Internet Protocol (IP): IPv4 & IPv6 • Internet Group Management Protocol (IGMP) • Domain Name System (DNS) • Dynamic Host Configuration Protocol (DHCP)

  9. IPv4 & IPv6 • Static Addressing IPv4 • Continuity • Dynamic Addressing IPv6 • Network address translation (NAT) • Service more users • Easier configuration and management • Security • Quality of Service (QoS) for different priority • More services & applications

  10. Transport Layer • Function • Delivery of data • Complete and accurate data delivery • Protocol • Transmission Control Protocol (TCP) • User Datagram Protocol (UDP)

  11. Application Layer • Function • Delivery data from one application to another one • Protocol • Hypertext Transfer Protocol (HTTP) • Simple Mail Transfer Protocol (SMTP) • File Transfer Protocol (FTP)

  12. Agenda • Internet Technology • Architecture • Protocol • ATM • IT for E-business • Selection Criteria • Platform • Middleware • Tools

  13. ATM • Asynchonous Transfer Mode (ATM) • Multimedia communications • Constant-sized cells for repaid switching • Scalability bandwidth on demand • Fiber cabling • Back bond network • Standards and interoperability

  14. Agenda • Internet Technology • Architecture • Protocol • ATM • IT for E-business • Selection Criteria • Platform • Middleware • Tools

  15. Selection Criteria • Cost • Function & feature • Performance • Scalability • Availability and reliability • Management tool • Support • User’s need (business & customer) Can you think more important selection criteria?

  16. Agenda • Internet Technology • Architecture • Protocol • ATM • IT for E-business • Selection Criteria • Platform • Middleware • Tools

  17. Platform • High-end commercial Unix Systems • Low-cost Intel/Motorola-base operations systems (Linux, Windows NT, MacOS X)

  18. Agenda • Internet Technology • Architecture • Protocol • ATM • IT for E-business • Selection Criteria • Platform • Middleware • Tools

  19. Middleware • Mail systems • Network management software • Security software • Payment software • Database management systems

  20. Middleware • Mail systems • Private mail systems (within company) • Public mail systems (ISP): service level agreements (SLAs) • Network management software requirements • Multi-vendor environments • Multi-platform infrastructures • Central user interface, software, hardware management • Integrated functions: inventory, storage, scheduling and security • Integrated resource management: systems, networks, desktops, database, and applications • Anything else?

  21. Middleware • Security software requirements • Confidentiality: privacy • Integrity: accuracy • Availability: continue access • Legitimate: authorized usage • Non-repudiation: digital signature & digital certification • Anything else?

  22. Middleware • Payment software requirements • Convertible (different currency) • Privacy issue • Minimum transaction cost • Security • Flexible • Micro-payment • Consumer payment • Business payment • Anything else?

  23. Middleware • Database management systems • Relational • Object-oriented

  24. Agenda • Internet Technology • Architecture • Protocol • ATM • IT for E-business • Selection Criteria • Platform • Middleware • Tools

  25. Tools • Image software • Web page editors • Content management • Graphic software • Sound software • Data warehousing & data mining • Enterprise resource planning • Call center

  26. Tools • Imaging technologies • Static image formats: GIF, JPEG and PNG • Dynamic image formats: QuickTime VR • Web page editors requirements • Code efficiency • Spell checker • Site management feature • Syntax checking • Anything else?

  27. Tools • Content management • Generating, controlling and organization of web content • Graphic software • Dynamic HTML (DHTML) • Sound software • Compress rate • .wav, .aiff, .au

  28. Tools • Data warehousing • De-normalized data • Cross-reference data • Data archive • Support decision making • Enterprise Resource Planning (ERP) • Digitizing business processing • Coordinating demand, supply, and production • Business analysis, new procedure, employee training

  29. Tools • Call center • Solving customer problems • A single point of contact providing convenience and satisfaction • Outsource or in-house Shall we outsource call center for e-business?

  30. Discussion Problem • How does e-business implementation affect your systems analysis and design process?

  31. Points to Remember • Internet Technology • Architecture • Protocol • ATM • IT for E-business • Selection Criteria • Platform • Middleware • Tools