Spreadsheets & Databases
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Spreadsheets & Databases

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Spreadsheets & Databases Spreadsheets & Databases Presentation Transcript

  • SPREADSHEETS & DATABASES Management and visualisation of data
  • OUTLINE
    • Spreadsheets
    • Pivot Tables
    • Visualisation
    • Relational Databases
        • What are they?
        • Strengths?
        • Limitations?
    • A Research Question
        • Do the methods of data collection provide evidence for the research question?
        • Managing data: Are spreadsheets or relational database better?
  • SPREADSHEET: DAILY ACTIVITIES
    • Category Student Activity Date Time Duration
    • ADL Michelle Eating 7/9/2008 8-9am 1
    • Prod Act Sina Class 7/9/2008 9-10am 1
    • Leisure Zun Hanging out 7/9/2008 8-8pm 12
    View slide
  • MANAGING DATA IN A SPREADSHEET View slide
  • CATEGORIES OF ACTIVITY
  • VISUALISATION
    • http:// spreadsheets.google.com/ccc?key =pwN_b0qZlR-kvl3f0BI1scQ&hl=en
  • HOURS SPENT IN ACTIVITIES
  • RELATIONAL DATABASE
    • Group of tables that “talk” via a primary key
    • Activity Types
    • Primary Key
    • Activity Log
    Activity Name Category Student’s name Activity name Duration
  • RELATIONAL DATABASE
    • Easy access and retrieval
    • Present information in a useful way
    • Integrity
    • Flexibility
    • Information sharing
    • Complex
    • Privacy
    • Expensive
    • Advantages
    • Disadvantages
  • SPREADSHEET
    • Simple
    • Good for one purpose
    • Limited range of data
    • Redundancy
    • Inconsistency
    • Human error
    • Advantages
    • Disadvantages
  • WHICH TOOL IS BETTER FOR MANAGING DATA: AN EXAMPLE
  •  
  • MANAGING DATA FOR ANALYSIS: WHICH IS THE BETTER APPROACH?
    • Spreadsheet vs Relational Database
    • General vs specific data manipulation