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Spreadsheets and databases

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Transcript

  • 1. SPREADSHEETS & DATABASES Management and visualisation of data
  • 2. 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?
  • 3. 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
  • 4. MANAGING DATA IN A SPREADSHEET
  • 5. VISUALISATION OF DATA: CATEGORIES
  • 6. VISUALISATION
    • http:// spreadsheets.google.com/ccc?key =pwN_b0qZlR-kvl3f0BI1scQ&hl=en
  • 7. VISUALISATION OF DATA: ACTIVITIES
  • 8. MANAGING DATA FOR ANALYSIS
    • Easy Access and Retrieval
    • Present information in a useful way
    • Integrity
    • Flexibility
    • Information sharing
    • Complex
    • Privacy
    • Expensive
    • Simple
    • Good for one purpose
    • Limited range of data
    • Redundancy
    • Inconsistency
    • Human error
    • Relational Database
    • Spreadsheet
  • 9. WHICH TOOL IS BETTER FOR MANAGING DATA: AN EXAMPLE
  • 10.  
  • 11. MANAGING DATA FOR ANALYSIS: WHICH IS THE BETTER APPROACH?
    • The key to managing data is being able to manipulate it.
    • Spreadsheets can filter from a drop down pre-set menu such as alphabetically, very general
    • Relational database uses different tables query box, this is more specific to users input as opposed to general approach in spreadsheet.
    • Therefore relational database are better for managing data for analysis