Business Data Communications,
Fourth Edition
Chapter 15: Addressing the Challenge of
Living in a Connected World
Learning Objectives
• Describe the use of ultra wideband
technology
• Describe wireless hotspots
• List common uses for radio frequency IDs
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Learning Objectives
• Define e-services
• Describe the advantages, disadvantages,
and challenges of living in a connected
world
• List the job skills needed by professionals
in the networking field
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Introduction
• Advances in network technology makes
life more complicated
• Advantages and disadvantages exist to
this new technology
• New careers have been created in this
new era of communication
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Emerging Technologies
• Ultra Wideband (UWB) Technology
– Faster wireless technology
• 200 Mbps at up to 500 feet
– Applications
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Search and rescue
Search buildings for criminals
Search burning buildings for victims
Remote inventory control
Replacement for personal area networks
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Emerging Technologies
• Ultra Wideband (UWB) Technology
– Standards
• Completed by 2004
• Devices available by 2006
– Bandwidth
• 3.1 to 10.6 GHz
– Restricted to prevent interference with other
wireless devices
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Emerging Technologies
• Wireless Hotspots
– IEEE 802.11 networking devices
– AKA Wi-Fi
– Distance from hotspot is 300 yards
– Cometa Networks plans to have 20,000
access points by 2004
– Urban wireless hotspots
• In metropolitan areas
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Emerging Technologies
• Radio Frequency IDs (RFIDs)
– Replacement for bar codes
– May use for inventory control
• Don’t need to “see” the items
• Bar codes must be visible to be read
– Wal-Mart will require distributors to use them
by 2005
– Standards in development at MIT
– One concern is the use of RFIDs to track
individuals
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Emerging Technologies
• E-Services
– Method that is superior to e-commerce in
increasing revenues
– Increase service to customers and building
better customer relationships
– Software that is used
• Microsoft .NET
• Sun Microsystems J2EE
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Living in a Connected World
• Advantages to Living in a Connected
World
– Instant access to information
– Widespread marketing to customers
– Build business relationships
– Reduction in amount of paper generated
– E-mail
– Location independence through wireless
technology
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Living in a Connected World
• Advantages to Living in a Connected
World
– Videoconferencing
– Wider bandwidth is available
– Global marketplace
– Convenience for busy people
– Easier access through cellular technology
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Living in a Connected World
• Disadvantages to Living in a Connected
World
– Additional tasks (e-mail volume)
– Spam
– Exchange of jokes among employees
– Intrusion on private lives by cellular phones
and pagers
– Distractions caused by cellular phones
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Living in a Connected World
• Disadvantages to Living in a Connected
World
– Internet hackers
– Must keep up with technology
• Cellular calling plans
• Other services
• DSL and cable services
– Personal networks need maintenance
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Living in a Connected World
• Challenges to Living in a Connected World
– Use the technology productively in business
and personal lives
– Responsible use of technology (Cellular)
– Companies don’t misuse technology
– Privacy must be protected
– Continuing education is critical
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Careers in a Connected World
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E-commerce consultant
Web designer
Network technician
Online customer support
Network administrator
Certification
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Summary
• Many new technologies
are emerging
• Third generation of
mobile communications
• Bluetooth
• Enhanced Data Rates
for Global Evolution
• SyncML
• Challenges exist for
living in this connected
world
• Advantages to the
new technologies can
make our lives easier
• Disadvantages
involve privacy and
misuse issues
• Many new job titles
have emerged in our
new economy
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