Issues, Trends and Strategies for Computer Systems Management

1
Issues, Trends and Strategies for Computer
Systems Management
Chapter 6. Internet

• UMUC Graduate School of
• Management and Technology

2
Agenda

• Background
• Internet architecture
• Using the Internet
• Managerial issues

3
Global Internet

• Definition
• Network of networks loose collection of related
  computer networks
• Information highway cyberspace
• History
• Late 1960s DARPA project for military,
  government agencies and academia
• Goal Allow researchers to share resources and
  exchange information

4
Definition and History

• Worldwide hypertext linking system (Web)
  developed by CERN in 1989
• NCSA developed Mosaic, the first web browser, in
  1992
• Netscape and Internet Explorer dominate market
• Various commercial enterprises discovered the
  benefits of being connected to the web

5
Key Underlying Technologies

• Internet Infrastructure
• Internet Resources and Services
• Webs Client Server Architecture
• Hypertext Transfer Protocol
• Hypertext Markup Language
• Extensible Markup Language

6
Internet Infrastructure
Host
PSN
PSN
PSN
PSN
PSN
POP
PSN
PSN
PSN - Packet Switched network POP - Point of
Presence
Host
Local Area Network (LAN)
7
Webs Client/Server Architecture
Source CERN
8
Hypertext Transfer Protocol
Browser
Source CERN
9
Hypertext Markup Language

• ltbodygt
• lth1gt Purchase Order lt/h1gt
• Date 12/23/2005 ltbrgt
• From Smith ltbrgt ltbrgt
• Item Number 12345 ltbrgt
• Description Muffler for 57 Chevy ltbrgt
• Qty 1 ltbrgtltbrgt
• Item Number 12346 ltbrgt
• Description Muffler Bracket for 57 Chevy ltbrgt
• Qty 2 ltbrgt
• lt/bodygt

HTML
10
Extensible Markup Language

• ltmaingt
• ltpurchasegt
• ltdategt12/23/2005 lt/dategt
• ltaccountgtSmith lt/accountgt
• ltitemgt
• ltitemnogt12345 lt/itemnogt
• ltitemdesgtMuffler for 57 Chevy lt/itemdesgt
• ltquantitygt1lt/quantitygt
• lt/itemgt
• ltitemgt
• ltitemnogt 12346 lt/itemnogt
• ltitemdesgt Muffler Bracket for 57 Chevy lt/itemdesgt
• ltquantitygt2lt/quantitygt
• lt/itemgt
• lt/purchasegt
• lt/maingt

XML
11
Why Use the Internet?

• Access to Information
• International Communications
• Research
• Education/Personal Development
• Business
• Fun

12
Internet Applications

• World Wide Web
• Electronic Mail
• Usenet newsgroups
• Listserv mailing lists
• Telnet
• File Transfer Protocol
• Gopher

13
Impact on Organizations

• Service to the Customer
• Information Services
• Intranets
• Extranets
• Collaboration

14
Service to the Customer

• Doing business electronically (Electronic
  commerce)
• Product information
• Customer service
• Customer feedback
• Product samples (beta software)
• Mass customization

15
Information Services

• Web pages via search engines
• Databases
• On-line services
• Media (magazines, newspapers, etc.)
• Newsgroups, mailing lists

16
Intranets

• 40 percent access manuals, procedures
• 38 percent post personal Web pages
• 38 percent access product and marketing data
• 30 percent post internal job offerings
• 27 percent revise and approve documents
• 24 percent access employee information
• 18 percent use schedules and calendars
• 12 percent access existing databases

Source Zona Research
17
Extranets

• Cost and time efficient methods to work with
  customers, suppliers and trading partners
• Example Fedex

18
Collaboration

• Communication
• Distributed planning and design
• Joint production
• Share data
• Innovation

19
Technology Trends

• Internet2
• Beyond HTML Java/ActiveX/ColdFusion/Shockwave
• XML
• Enterprise Portals
• Application Service Providers
• PDAs/Cellular Phone Web Accessibility

20
Management Issues Defend or Refute

• 1. The Internet has improved office
  productivity.
• Team 1 Defend
• Team 2 Refute
• 2. The World Wide Web is an ideal environment
  for electronic commerce.
• Team 3 Defend
• Team 4 Refute
• 3. The Internet transactions should be taxed.
• Team 5 Defend
• Team 6 Refute
• Other Issues
• The Internet is a threat to our Nations security
  and welfare.
• The web is good for our children.