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HTM304: Management Information Systems THE INTERNET & THE NEW INFORMATION TECHNOLOGY INFRASTRUCTURE March 18, 2003 Oliver Yao LEARNING OBJECTIVES DESCRIBE FEATURES OF INFRASTRUCTURE & CONNECTIVITY STANDARDS DESCRIBE INTERNET & ITS CAPABILITIES EVALUATE INTERNET BENEFITS *

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HTM304: Management Information Systems

THE INTERNET & THE NEW INFORMATION TECHNOLOGY INFRASTRUCTURE

March 18, 2003

Oliver Yao


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LEARNING OBJECTIVES

  • DESCRIBE FEATURES OF INFRASTRUCTURE & CONNECTIVITY STANDARDS

  • DESCRIBE INTERNET & ITS CAPABILITIES

  • EVALUATE INTERNET BENEFITS

    *


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LEARNING OBJECTIVES

  • DESCRIBE TECHNOLOGIES FOR SUPPORTING ELECTRONIC COMMERCE

  • ANALYZE PROBLEMS OF NEW INFORMATION TECHNOLOGY (IT) INFRASTRUCTURE

    *


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MANAGEMENT CHALLENGES

1. BROADER PERSPECTIVE OF INFRASTUCTURE DEVELOPMENT

2. SELECTING TECHNOLOGIES FOR IT INFRASTUCTURE (CONNECTIVITY)

*


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THE NEW INFORMATION TECHNOLOGY (IT) INFRASTRUCTURE

  • LINKS: Workstations, network computers, local area networks (LAN), server computers

  • INFORMATION FLOWS FREELY THROUGHOUT ORGANIZATION

  • MAY BE LINKED: Kiosks, point-of-sales (POS) terminals, Internet

    *


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THE NEW INFORMATION TECHNOLOGY (IT) INFRASTRUCTURE

  • ENTERPRISE NETWORKING:

    • Arrangement of hardware, software, networks, data resources.

    • Creates companywide network to speed processes, lower costs

  • INTERNETWORKING: Linking of separate networks in an outside of organization

    *


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NETWORK A

NETWORK B

NETWORK C

INTERNETWORKING

  • LINK NETWORKS

  • EACH RETAINS IDENTITY INTO INTERCONNECTED NETWORK

    *


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CONNECTIVITY

  • CONNECTIVITY

    • Measure of ability of computing devices to pass & share information without human intervention

  • OPEN SYSTEMS

    • Software systems able to function on different computer platforms.

    • Nonproprietary operating systems, applications, protocols

      *


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TRANSMISSION CONTROL PROTOCOL / INTERNET PROTOCOL (TCP / IP)

REFERENCE MODEL DEVELOPED BY DEPARTMENT OF DEFENSE IN 1972

1. APPLICATION: Provides screen presentations

2. TRANSMISSION CONTROL PROTOCOL (TCP): Breaks data into datagrams

3. INTERNET PROTOCOL (IP): Breaks, sends datagrams as smaller IP packets; can repeat transmission to increase reliability

*


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TRANSMISSION CONTROL PROTOCOL / INTERNET PROTOCOL (TCP / IP)

4. NETWORK INTERFACE: Handles addressing and interface between computer & network

5. PHYSICAL NET: Defines electrical transmission characteristics for sending signal along networks to destination

*


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OPEN SYSTEM INTERCONNECT (OSI)

  • AN ALTERNATIVE MODEL

  • INTERNATIONAL REFERENCE MODEL FOR LINKING DIFFERENT TYPES OF COMPUTERS & NETWORKS

    *


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THE INTERNET

  • BEGAN AS GOVERNMENT CONNECTION OF UNIVERSITIES

  • INTERNET SERVICE PROVIDER (ISP): Organization connected to Internet, leases temporary connections to subscribers

  • NO ONE OWNS IT, NO FORMAL ORGANIZATION

    *


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INTERNET TERMS

  • HOME PAGE:WWW screen display welcomes user to organization’s page

  • WEBMASTER:Person in charge of Web site

  • UNIFORM RESOURCE LOCATOR (URL):Address of specific Internet resource

    *


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CLIENT/ SERVER ON THE INTERNET

  • CLIENT: Runs Web browser, other software, connects to server

  • SERVER: Has Web server (HTTP), Simple Mail Transfer Protocol (SMTP), Domain Name Serving (DNS), File Transfer Protocol (FTP), Firewall (filters data to & from Internet), Network News Transfer Protocol (NNTP)

    *


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EXAMPLES OF INTERNET CLIENT PLATFORMS

  • PC: General purpose, performs many tasks, may be unreliable, complex

  • NET PC: Minimal local storage & processing, uses software, services delivered by Internet

  • PAGER: Handheld, provides limited e-mail, browsing

    *


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EXAMPLES OF INTERNET CLIENT PLATFORMS

  • SMART PHONE: Handheld, has small screen, keyboard, e-mail, browsing, voice

  • GAME MACHINE: Modem, keyboard, Web access

  • PERSONAL DIGITAL ASSISTANT (PDA): Handheld personal digital assistant

    *


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EXAMPLES OF INTERNET CLIENT PLATFORMS

  • E-MAIL MACHINE: Tablet, keyboard, text e-mail, requires e-mail service

  • SET TOP BOX: Provides Web surfing, e-mail, uses television set, wireless keyboard

    *


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MAJOR INTERNET SERVICES

  • E -MAIL:Person -to-person messaging; document sharing

  • USERNET NEWSGROUPS:Electronic bulletin boards for discussion groups

  • LISTSERVs:e-mail list servers for discussion groups

  • CHATTING:Interactive conversations

  • TELNET:Log on one computer, work on another

  • FTP:Transfer files from computer to computer

  • GOPHERS:Use menus to locate text material

  • WORLD WIDE WEB: Text, audio, graphics, video

    *


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PROTOCOL FOR THE WEB

EXTENSION

HOST COMPUTER

DIRECTORY

DOMAIN NAME

INTERNET ADDRESS

http://www.csusm.edu/oliveryao


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INTERNET TERMS

  • HYPERTEXT TRANSPORT PROTOCOL (http):Communications standard used to transfer Web pages

  • HYPERTEXT MARKUP LANGUAGE (HTML):Popular programming language for creating Web sites

    *


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SEARCHING THE WEB FOR INFORMATION

  • SEARCH ENGINE:Tool for locating specific sites or information on WWW

  • PORTAL: Point of entry to WWW

  • “PUSH” TECHNOLOGY:Server streams relevant content to browser

  • MULTICASTING: Sending data to select group

    *


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NEXT GENERATION INTERNET

  • BROADBAND: Fiber optics and related technology will provide much higher delivery speed (target: 10 to 100 million bits per second to the desktop)

    *


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NEXT GENERATION INTERNET

  • INTERNET2: New protocols, higher transmission speed, interconnected gigapops (regional high-speed points-of-presence), connected to high-performance *


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THE WIRELESS WEB

  • MOBILE COMMERCE (m-commerce)

    • ACCESS TO WEB ON THE GO: Anywhere, any time, many functions

    • INFORMATION-BASED SERVICES

    • TRANSACTION-BASED SERVICES

    • PERSONALIZED SERVICES

      *


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INTERNET BENEFITS

  • GLOBAL CONNECTIVITY

  • REDUCED COMMUNICATIONS COST

  • LOWER TRANSACTION COSTS

  • REDUCED AGENCY COSTS

  • INTERACTIVITY, FLEXIBILITY, CUSTOMIZATION

  • ACCELERATED KNOWLEDGE

    *



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INTRANET

  • INTERNAL NETWORK

  • WWW TECHNOLOGY

  • FIREWALL:Security System to Prevent Invasion of Private Networks

  • OVERCOMES COMPUTER PLATFORM DIFFERENCES

  • OFTEN INSTALLED ON EXISTING NETWORK INFRASTRUCTURE

    *


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EXTRANET

  • ALLOWS SELECT USERS OUTSIDE ORGANIZATION TO USE ITS INTRANET:

    • CUSTOMERS

    • BUSINESS PARTNERS

    • VENDORS

      *



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E-COMMERCESERVERSOFTWARE

  • SET UP ELECTRONIC STOREFRONT

  • DESIGN ELECTRONIC SHOPPING CART

  • MAKE SHIPPING ARRANGEMENTS

  • LINK TO ELECTRONIC PAYMENT

  • DISPLAY PRODUCT AVAILABILITY & TRACK SHIPMENTS

  • CONNECT TO BACK-OFFICE SYSTEMS

  • REPORT TRANSACTION

    *


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CUSTOMER TRACKING TOOLS

  • COLLECT & STORE DATA ON BEHAVIOR

  • ANALYZE DATA

  • IDENTIFY TRENDS

  • CLICKSTREAM TRACKING: Collects detailed customer data, stores in log

  • COLLABORATIVE FILTERING: Combines data on similar customers, predicts future behavior

    *


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ADDITIONAL TOOLS

  • WEB CONTENT MANAGEMENT: Assists Webmaster oversee large sites

  • WEB SITE PERFORMANCE MONITORING: Detects, analyzes, helps correct problems

  • WEB HOSTING SERVICE: Maintains large Web server for subscribers

    *


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POTENTIAL PROBLEMS WITH INTERNET INFRASTRUCTURE

  • CONNECTIVITY & APPLICATION INTEGRATION

  • LOSS OF MANAGEMENT CONTROL

  • ORGANIZATIONAL CHANGE

  • HIDDEN COSTS

  • NETWORK RELIABILITY, SECURITY, BANDWIDTH

    *