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Ajax Application Information Science and Knowledge Systems ...

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Transcript

  • 1. Ajax Application Information Science and Knowledge Systems: Semantic Web Spring 2006 / Dr. Don Turnbull Presented by Doo-soon Kim & David Kim
  • 2. Overview
    • Project description
    • Overall architecture
    • Back-end logic
    • Demonstration
    • Discussion
  • 3. Project Description
    • Good UI for large data
      • Scrollable bulletin board
      • Type-ahead keyword suggest
      • No delay time with Ajax
  • 4. Project Description (cont.)
    • Screen shot
  • 5. System Architecture DOM CSS Server Web Browser JavaScript XMLHttpRequest Object
    • View
    • Edit
    • Delete
    • Write
    • Suggest
    PHP Script
    • DB:MySQL
  • 6. Key elements of Ajax
    • CSS
      • Style array
      • className
    • DOM
      • getElementById
      • createElement
      • createTextNode
      • appendChild
  • 7. Key elements of Ajax (cont.)
    • XMLHttpRequest
      • request.open( String method, String URL, ashynchronous boolean)
    • responseText
    • responseXML
  • 8. Discussion
    • How relevant to Semantic Web
      • Rich UI solution
      • Desktop application
    • The advantages of Ajax in our apps.
      • Removing delay time
  • 9. Discussion (cont.)
    • Future Development
      • Forum site
      • Shopping mall
      • Any site with huge amount of data
    • Shortcoming if any
      • High transaction overhead on server and browser
  • 10.
    • Questions ?