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Slides Felienne Hermans Symposium EWI
Slides Felienne Hermans Symposium EWI
Slides Felienne Hermans Symposium EWI
Slides Felienne Hermans Symposium EWI
Slides Felienne Hermans Symposium EWI
Slides Felienne Hermans Symposium EWI
Slides Felienne Hermans Symposium EWI
Slides Felienne Hermans Symposium EWI
Slides Felienne Hermans Symposium EWI
Slides Felienne Hermans Symposium EWI
Slides Felienne Hermans Symposium EWI
Slides Felienne Hermans Symposium EWI
Slides Felienne Hermans Symposium EWI
Slides Felienne Hermans Symposium EWI
Slides Felienne Hermans Symposium EWI
Slides Felienne Hermans Symposium EWI
Slides Felienne Hermans Symposium EWI
Slides Felienne Hermans Symposium EWI
Slides Felienne Hermans Symposium EWI
Slides Felienne Hermans Symposium EWI
Slides Felienne Hermans Symposium EWI
Slides Felienne Hermans Symposium EWI
Slides Felienne Hermans Symposium EWI
Slides Felienne Hermans Symposium EWI
Slides Felienne Hermans Symposium EWI
Slides Felienne Hermans Symposium EWI
Slides Felienne Hermans Symposium EWI
Slides Felienne Hermans Symposium EWI
Slides Felienne Hermans Symposium EWI
Slides Felienne Hermans Symposium EWI
Slides Felienne Hermans Symposium EWI
Slides Felienne Hermans Symposium EWI
Slides Felienne Hermans Symposium EWI
Slides Felienne Hermans Symposium EWI
Slides Felienne Hermans Symposium EWI
Slides Felienne Hermans Symposium EWI
Slides Felienne Hermans Symposium EWI
Slides Felienne Hermans Symposium EWI
Slides Felienne Hermans Symposium EWI
Slides Felienne Hermans Symposium EWI
Slides Felienne Hermans Symposium EWI
Slides Felienne Hermans Symposium EWI
Slides Felienne Hermans Symposium EWI
Slides Felienne Hermans Symposium EWI
Slides Felienne Hermans Symposium EWI
Slides Felienne Hermans Symposium EWI
Slides Felienne Hermans Symposium EWI
Slides Felienne Hermans Symposium EWI
Slides Felienne Hermans Symposium EWI
Slides Felienne Hermans Symposium EWI
Slides Felienne Hermans Symposium EWI
Slides Felienne Hermans Symposium EWI
Slides Felienne Hermans Symposium EWI
Slides Felienne Hermans Symposium EWI
Slides Felienne Hermans Symposium EWI
Slides Felienne Hermans Symposium EWI
Slides Felienne Hermans Symposium EWI
Slides Felienne Hermans Symposium EWI
Slides Felienne Hermans Symposium EWI
Slides Felienne Hermans Symposium EWI
Slides Felienne Hermans Symposium EWI
Slides Felienne Hermans Symposium EWI
Slides Felienne Hermans Symposium EWI
Slides Felienne Hermans Symposium EWI
Slides Felienne Hermans Symposium EWI
Slides Felienne Hermans Symposium EWI
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Slides Felienne Hermans Symposium EWI

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Transcript

  • 1. Software engineering
  • 2. Understanding and improving howpeople build software systems
  • 3. Require mentsUnderstanding and improving howpeople build software systems
  • 4. Require ments TestingUnderstanding and improving howpeople build software systems
  • 5. Require ments Deploy ment TestingUnderstanding and improving howpeople build software systems
  • 6. Require ments Deploy ment TestingUnderstanding and improving howpeople build and evolve software systems
  • 7. An estimated 60-80% of developers timeis spent working with existing code
  • 8. My research concerns end-user programmers
  • 9. How did I get this idea?
  • 10. By studying what business does in practice
  • 11. Excel is running companies!
  • 12. 95% of all U.S. firms use spreadsheets forfinancial reporting
  • 13. 90% of all analysts in industry performcalculations in spreadsheets
  • 14. 50% of spreadsheets form the basis fordecisions
  • 15. Only 33% of spreadsheets hasa manual
  • 16. Spreadsheets can have a long life,5 years on average
  • 17. Average sheet is used by 12 differentpeople
  • 18. Difficult spreadsheets withoutdocumentation can lead to serious errors
  • 19. The European Spreadsheet Risk InterestGroup (Eusprig) collects horror stories
  • 20. No docs, errors, long lifeIt looks like software! However...
  • 21. Spreadsheet users lack great toolsupport
  • 22. We did not start coding!
  • 23. We performed 27 interviews
  • 24. We asked them:What annoys you?
  • 25. And what makes you happy?
  • 26. We found that especially support forunderstanding spreadsheets was missing
  • 27. Then we started coding
  • 28. We went back to practice
  • 29. “This diagram remindsme of what I had inmind when building”
  • 30. “This diagram reminds me of what I had in mind when building”“This makes my job 10times easier”
  • 31. Users started diagnosing with the dfd’s
  • 32. “Thatshould beimproved”
  • 33. “This must be confusing for others”“Thatshould beimproved”
  • 34. We went back to practice
  • 35. And collected several ideas forfuture work
  • 36. Solving real problems and testingsolutions in practice
  • 37. www.se.ewi.tudelft.nlwww.felienne.com

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