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WWWWWW
ELC 200
DAY 15
WWWWWW
Chapter 9
Website Evaluation & Usability Testing
WWWWWW Awad –Electronic Commerce 1/e© 2002 Prentice Hall
Day 14 Agenda
• Quiz #3 one April 5– Chaps 8- 12
• Lecture/Discuss Web Site Evaluation and Usability Testing
• Assignment # 5 on Next Slide– Only 3 more after this one
WWWWWW Awad –Electronic Commerce 1/e© 2002 Prentice Hall
Assignment #5
• Assignment # 5– Page 289 Web Exercises
• Question # 1 & 2 only
– For Question # 2 Do as an Individual Project and use only the First National Bank of South Miami, http://www.fnbsm.com
• Question C means what Computer language– HTML, JavaScript, ASP ?
– Turn in a well formatted typed response sheet• Or e-mail
– Due Tuesday, March 22 at start of class
WWWWWW Awad –Electronic Commerce 1/e© 2002 Prentice Hall
Useability resources
• http://magazine.onlinetransmissions.com/resources.asp• http://
webdesign.about.com/cs/usability/tp/aatpwebusable.htm• http://www.useit.com/• http://www.webstyleguide.com/• http://www-306.ibm.com/ibm/easy/eou_ext.nsf/publish/57
2• http://www.smartwebby.com/web_site_design/default.asp
• http://www.netmechanic.com/news/vol7/design_no4.htm
WWWWWW Awad –Electronic Commerce 1/e© 2002 Prentice Hall
RELIABILITY TESTING
• Provide system backup
• Install a disk-mirroring feature
• Ensure that the system hardware is ‘fault-tolerant’
Website Evaluation & Traffic Management: What Makes a Website Usable?
WWWWWW Awad –Electronic Commerce 1/e© 2002 Prentice Hall
Privativate Lines
Internet
Router Router
Load balancer
Load balancerLoad balancer
Load balancer
FirewallFirewall
switch Switch
Switch Switch
Server Server Server
Server Server Server
Server
Server
Server
Server
Server
Server
Server
Server
Server
Server
Server
Server
Server
Server
Web Server farm
Firewall
Firewall
Server Server
Server Server
Server
Server
Server
Server
Application Server farm
Server Server Server ServerServer Server
VPN Concentratror
Server Server Server Server Server
Server
Server Server
Server
Server
Server
Server
VPN Concentratror
Msg Server Farm
CSU/DSU ROUTER
CSU/DSU ROUTER
CSU/DSU ROUTER
CSU/DSU ROUTER
CSU/DSU ROUTER
CSU/DSU ROUTER
Firewall
Firewall
CSU/DSU ROUTER
CSU/DSU ROUTER
Switch
SwitchSwitch
Switch
SwitchSwitch
Minicomputer Minicomputer
MinicomputerMinicomputer
Disk array
Disk array
DB SERVER FARM
Switch
WWWWWW Awad –Electronic Commerce 1/e© 2002 Prentice Hall
MANAGING IMAGES & COLOR
• Readability Testing
• GIFs vs. JPEGs
• Use of Cache
• Use of Links
• Role of the Web Server
Website Evaluation & Traffic Management: What Makes a Website Usable?
WWWWWW Awad –Electronic Commerce 1/e© 2002 Prentice Hall
Usability
• www.cnn.com
• www.ebay.com
• www.fidelity.com
• www.disney.com
• www.motorola.com
• www.msnbc.com
WWWWWW Awad –Electronic Commerce 1/e© 2002 Prentice Hall
ROLE OF WEB ADMINISTRATOR
• Database Server
• Application Server
• Web Server
• Special-purpose Servers for Security
• Internet Bandwidth
• Internet Performance Status– http://www.netiq.com/
Website Evaluation & Traffic Management: Role of Web Administrator
WWWWWW Awad –Electronic Commerce 1/e© 2002 Prentice Hall
Privativate Lines
Internet
Router Router
Load balancer
Load balancerLoad balancer
Load balancer
FirewallFirewall
switch Switch
Switch Switch
Server Server Server
Server Server Server
Server
Server
Server
Server
Server
Server
Server
Server
Server
Server
Server
Server
Server
Server
Web Server farm
Firewall
Firewall
Server Server
Server Server
Server
Server
Server
Server
Application Server farm
Server Server Server ServerServer Server
VPN Concentratror
Server Server Server Server Server
Server
Server Server
Server
Server
Server
Server
VPN Concentratror
Msg Server Farm
CSU/DSU ROUTER
CSU/DSU ROUTER
CSU/DSU ROUTER
CSU/DSU ROUTER
CSU/DSU ROUTER
CSU/DSU ROUTER
Firewall
Firewall
CSU/DSU ROUTER
CSU/DSU ROUTER
Switch
SwitchSwitch
Switch
SwitchSwitch
Minicomputer Minicomputer
MinicomputerMinicomputer
Disk array
Disk array
DB SERVER FARM
Switch
WWWWWW Awad –Electronic Commerce 1/e© 2002 Prentice Hall
Extra Credit question for next Quiz
• Extra Credit (5 points)
• What is the derivation of the name “cookie” used by Internet Browsers?
