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MIS 495 Understanding Internetworking Infrastructure

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Networks. Processing Systems. Facilities. Network Technology. Local area networks. Hubs, switches, wireless access points, and network adapters. Wide area networks ... – PowerPoint PPT presentation

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Title: MIS 495 Understanding Internetworking Infrastructure


1
MIS 495Understanding Internetworking
Infrastructure
  • Dr. Steve RossWinter 2008

Based on Chapter 5 of Applegate, Austin, and
McFarlan, Corporate Information Strategy and
Management, 7th ed., 2007.
2
Laws
  • Moores Law performance of memory chips will
    double every 18-24 months (1965)
  • Metcalfes Law usefulness of network increases
    with the square of the number of users connected

3
Three Basic Components
  • Networks
  • Processing Systems
  • Facilities

4
Network Technology
  • Local area networks
  • Hubs, switches, wireless access points, and
    network adapters
  • Wide area networks
  • Routers
  • Firewalls and other security devices
  • Caching, content acceleration, and other
    specialized network devices

5
Processing Technology
  • Client devices and systems
  • Server devices and systems
  • Mainframe devices and systems
  • Middleware
  • Infrastructure management systems
  • Business applications

6
Facilities Technology
  • Buildings and physical space
  • Network conduits and connections
  • Power
  • Environmental controls
  • Security

7
Operational Characteristics
  • Asynchronous
  • Latency
  • Decentralized
  • Scalable

8
Business Implications
  • Emergence of real-time infrastructures
  • Broader exposure to operational threats
  • New models of service delivery
  • Managing legacies

9
Real-Time Infrastructures
  • Better data, better decisions
  • Improved process visibility
  • Improved process efficiency
  • From make-and-sell to sense-and-respond

10
Operational Threats
  • Computerized chain reactions
  • Attacks

11
Service Delivery
  • Standardization and technology advances permit
    specialization by individual firms in value
    chains, resulting in economies of scale and
    higher service levels. (p. 300)
  • Reliability of vital services is only as good as
    the weakest link
  • Services must be integrated into rest of
    companys IT infrastructure

12
Legacy Systems
  • Old technologies
  • Old processes
  • Old organizations
  • Old cultures
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