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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

learning objectives
LEARNING OBJECTIVES
  • DESCRIBE FEATURES OF INFRASTRUCTURE & CONNECTIVITY STANDARDS
  • DESCRIBE INTERNET & ITS CAPABILITIES
  • EVALUATE INTERNET BENEFITS

*

learning objectives3
LEARNING OBJECTIVES
  • DESCRIBE TECHNOLOGIES FOR SUPPORTING ELECTRONIC COMMERCE
  • ANALYZE PROBLEMS OF NEW INFORMATION TECHNOLOGY (IT) INFRASTRUCTURE

*

management challenges
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
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

*

the new information technology it infrastructure7
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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internetworking

NETWORK A

NETWORK B

NETWORK C

INTERNETWORKING
  • LINK NETWORKS
  • EACH RETAINS IDENTITY INTO INTERCONNECTED NETWORK

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connectivity
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
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 ip11
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

*

open system interconnect osi
OPEN SYSTEM INTERCONNECT (OSI)
  • AN ALTERNATIVE MODEL
  • INTERNATIONAL REFERENCE MODEL FOR LINKING DIFFERENT TYPES OF COMPUTERS & NETWORKS

*

the internet
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

*

internet terms
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/ 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
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 platforms19
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 platforms20
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
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

*

internet address

PROTOCOL FOR THE WEB

EXTENSION

HOST COMPUTER

DIRECTORY

DOMAIN NAME

INTERNET ADDRESS

http://www.csusm.edu/oliveryao

internet terms23
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
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

*

next generation internet
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)

*

next generation internet26
NEXT GENERATION INTERNET
  • INTERNET2: New protocols, higher transmission speed, interconnected gigapops (regional high-speed points-of-presence), connected to high-performance *
the wireless web
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

*

internet benefits
INTERNET BENEFITS
  • GLOBAL CONNECTIVITY
  • REDUCED COMMUNICATIONS COST
  • LOWER TRANSACTION COSTS
  • REDUCED AGENCY COSTS
  • INTERACTIVITY, FLEXIBILITY, CUSTOMIZATION
  • ACCELERATED KNOWLEDGE

*

intranet
INTRANET
  • INTERNAL NETWORK
  • WWW TECHNOLOGY
  • FIREWALL:Security System to Prevent Invasion of Private Networks
  • OVERCOMES COMPUTER PLATFORM DIFFERENCES
  • OFTEN INSTALLED ON EXISTING NETWORK INFRASTRUCTURE

*

extranet
EXTRANET
  • ALLOWS SELECT USERS OUTSIDE ORGANIZATION TO USE ITS INTRANET:
    • CUSTOMERS
    • BUSINESS PARTNERS
    • VENDORS

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e commerce server software
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
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

*

additional tools
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

*

potential problems with internet infrastructure
POTENTIAL PROBLEMS WITH INTERNET INFRASTRUCTURE
  • CONNECTIVITY & APPLICATION INTEGRATION
  • LOSS OF MANAGEMENT CONTROL
  • ORGANIZATIONAL CHANGE
  • HIDDEN COSTS
  • NETWORK RELIABILITY, SECURITY, BANDWIDTH

*