Data Viz - telling stories with data

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OCSI's Tom Smith presentation to the iNetwork conference "Getting out the Facts: Open Data & Data Visualisation"

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Data Viz - telling stories with data

  1. 1. Data viz – telling stories with dataTom Smith, OCSI
  2. 2. About OCSI www.ocsi.co.uk +44 1273 810 270 info@ocsi.co.uk
  3. 3. Make an impact Your data must influence yourorganisation & services
  4. 4. Get your message across Data visualisation is key way to communicate stories from your data
  5. 5. Information from data. Order from chaos • “data graphics can do much more than … substitute for statistical tables…. [They] are instruments for reasoning about quantitative information ”, Tufte, 1983
  6. 6. How can data visualisation helplocal organisations?
  7. 7. Summarise issues for service managersand senior staffWest Midlands Apprentices, Excel dashboard
  8. 8. Engage the public with your information
  9. 9. Causes of death for under 75s
  10. 10. Engage the public (2) • Contribution of different diseases to inequalities in life expectancy
  11. 11. Communicate key messages to ... staff,commissioners, funders, volunteers ...
  12. 12. Data visualisation principles
  13. 13. Visualisation is communication 1. Design for your audience Good communication 2. Keep it 3. Keep accurate it clear
  14. 14. Principle 1: Design for your audience • Key points for this visualisation for this audience – Limit what you show. Be selective • Know your audience – What information does your audience want/ need? – What will they quickly understand? – What do they need to help them see the data story • Test your visualisation - colleagues? managers?
  15. 15. Design for your audience – evolution 1 Crime rates by ward for single indicator. Targets. Detailed.Robert Radburn, Leicestershire. Changing how we present data to Community Safety Team Management meetings
  16. 16. Design for your audience – evolution 2 Crime indicators for all crimes, all wards. 3 years
  17. 17. Design for your audience – evolution 3 Crime indicators for all crimes, all wards. Trends by colour
  18. 18. Principles 2 & 3: Keep it accurate & clear • Focus on the message(s) for the audience • Show the data without distortion – Avoid common pitfalls (do’s and dont’s) • Don’t obscure the information – Use the right type of chart • Learn from others – Look at examples and resources – there’s lots out there!
  19. 19. Data visualisation practicalDo’s and Don’ts
  20. 20. Simplify to emphasise key message(s)OCSI analysis of Amaze UK cost-benefits
  21. 21. Annotate to emphasise the storyWarwickshire Quality of Life 2011
  22. 22. Additional visuals to strengthen the storyMetropolitan Police
  23. 23. Show the whole truth (trends) 3 points is not a trend ... Same dataset, longer time series, different story
  24. 24. Repeated elements for similar aspectsWarwickshire Quality of Life 2011
  25. 25. Use the right chart Shouldn’t pie charts add up to 100?%Hall of shame: “Criminal” pie-chartvia ONS Data Visualisation Centre
  26. 26. Just because you can, doesn’t mean you shouldHall of shame: Pictorial representation
  27. 27. 3D charts? No! Hides the story How much? When?“3D charts are the first refuge ofscoundrels”, Brian Derry, NHS-ICHall of shame: Excel 3D chartsvia ONS Data Visualisation Centre
  28. 28. Keep it simple
  29. 29. Learn from others – lots of resources • www.improving-visualisation.org.uk/links visualisation support for public sector researchers • www.visualisingdata.com (lots of links, tutorials, tools) • Flowing Data, www.flowingdata.com (examples) • www.gapminder.org (Hans Rosling videos) • ONS Data Viz centre www.ons.gov.uk/ons/interactive/index.html
  30. 30. Learn from others – lots of resourcesextremepresentation.typepad.com/blog/2006/09/choosing_a_good.html
  31. 31. Summing up • Your data must influence your organisation & services – Make an impact • Data visualisation is key way to communicate stories from your data – Get your message across. Lots of uses in local organisations • Principles - design for audience, keep it accurate & clear • Practicals - dos & donts • Learn from others - resources • Have fun
  32. 32. Tom SmithOxford Consultants for Social Inclusion (OCSI)e: info@ocsi.co.ukt: +44 1273 810 270w: www.ocsi.co.uk
  33. 33. Data viz and photo credits • Warwickshire Quality of Life 2011 report • Brighton & Hove Annual Director Public Health 2012 report • Leicestershire Research & Intelligence analysis and reports • OCSI analysis for Amaze UK disability charity • West Midlands Regional Observatory Apprentice Dashboard • Guardian Public Spending wallchart • David McCandless Map Venn diagram • ONS Data Visualisation Centre , visuals and hall of shame • DCLG / OCSI, Improving Visualisation for public sector researchers • Chart Chooser • Flowing Data • Wikimedia Commons

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