1. Software Craftsmanship
for better software
Phillip Oertel @ EuRuKo 2009
12.05.2009 (Di)

2. Overview
• Where does this term come from?
• How does it help us?
• What does it demand?
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3. We‘ve compared
ourselves to ...
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4. artists
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5. musicians
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6. writers
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7. architects
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8. engineers
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9. We are professional
software developers.
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10. craftsmen
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12. schedule
requirements
code quality
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13. It‘s our fault.
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14. How does Software
Craftsmanship fix this?
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15. Values
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16. Responsibility
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17. Practise
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18. Discipline
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19. Practises
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20. Iterative
development
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21. Automated tests
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22. KISS
keep it simple, stupid.
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23. Close customer
collaboration
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24. Continuous small
improvements
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26. Code for
other
humans,
not
machines.
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27. Think of code
in flux.
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28. Refactoring
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29. Hard, Basic skills
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30. Comments
Classes Formatting
Unit Tests
Meaningful Names
Systems
Functions
Error Handling Objects and Data
Structures
Concurrency Boundaries
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31. Functions
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32. Functions
• small • prefer exceptions
• do one thing • don‘t repeat yourself
• one level of abstraction
• use descriptive names
• function arguments
• have no side effects
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33. How we learn
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35. learn like craftsmen:
apprentice
journeyman
master
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36. we loose masters.
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37. values and skills
are not enough.
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40. some books
• Clean Code, Robert C. Martin, 2008
• The Pragmatic Programmer, Andy Hunt, Dave
Thomas, 1999
• Refactoring, Martin Fowler, 1999
• Software Craftsmanship, Pete McBreen, 2002
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41. photo credits
• Musician: http://www.flickr.com/photos/tommarcello/2250681391/
• Fountain pen: http://www.flickr.com/photos/brightmeadow/281659324/
• Architecture model: http://www.flickr.com/photos/blahflowers/2613241979/
• F1 Engineers: http://www.flickr.com/photos/7480659@N06/2295266851/
• Craftsman: http://www.flickr.com/photos/andreasej/3120849218/
• Doctor: http://www.flickr.com/photos/orcoo/345583754/
• Monkeying around: http://www.flickr.com/photos/practicalowl/661094024/
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