1. Continuous Improvement in PHP Projects
Thorsten Rinne I 25th February 201 London, UK
1,
© 201 Mayflower GmbH
1

2. Team Lead
Scrum Master
Head of Open Source Labs
@ThorstenRinne
Continuous Improvement in PHP Projects I Mayflower GmbH I 25th February I 2

3. Who are
you?
Continuous Improvement in PHP Projects I Mayflower GmbH I 25th February I 3

4. Continuous Integration?
Continuous Improvement in PHP Projects I Mayflower GmbH I 25th February I 4

5. Continuous Inspection?
Continuous Improvement in PHP Projects I Mayflower GmbH I 25th February I 5

6. Continuous Delivery?
Continuous Improvement in PHP Projects I Mayflower GmbH I 25th February I 6

7. http://www.flickr.com/photos/nataliaromay/3217596831/
Why do we need
Continuous Improvement?
Continuous Improvement in PHP Projects I Mayflower GmbH I 25th February I 7

8. Look at this real life
example...
Continuous Improvement in PHP Projects I Mayflower GmbH I 25th February I 8

9. 1966: This was not a goal.
Continuous Improvement in PHP Projects I Mayflower GmbH I 25th February I 9

10. 2010: This was a goal.
Continuous Improvement in PHP Projects I Mayflower GmbH I 25th February I 10

11. We are developers.
We are not perfect.
We‘re not politicians.
Continuous Improvement in PHP Projects I Mayflower GmbH I 25th February I

12. „Continuous Improvement is better
than delayed perfection.“
Mark Twain
Continuous Improvement in PHP Projects I Mayflower GmbH I 25th February I 12

13. What exactly is
Continuous Improvement?
Continuous Improvement in PHP Projects I Mayflower GmbH I 25th February I 13

14. „A continuous improvment
process is an ongoing effort to
improve products, services or
processes. These efforts seek
incremental improvment over
time or breakthrough
improvement all at once.“
Continuous Improvement in PHP Projects I Mayflower GmbH I 25th February I 14

15. Continuous Improvement in PHP Projects I Mayflower GmbH I 25th February I 15

16. Continuous Improvement
~
KAIZEN
Continuous Improvement in PHP Projects I Mayflower GmbH I 25th February I 16

17. KAI ZEN
= =
Change Good
Continuous Improvement in PHP Projects I Mayflower GmbH I 25th February I 17

18. Attention!
Continuous Improvement in PHP Projects I Mayflower GmbH I 25th February I 18

19. Your Management needs a
will for changes!
Continuous Improvement in PHP Projects I Mayflower GmbH I 25th February I 19

20. You need 3 steps for
Continuous Improvement.
Continuous Improvement in PHP Projects I Mayflower GmbH I 25th February I 20

21. 1
What are we trying to
accomplish?
Continuous Improvement in PHP Projects I Mayflower GmbH I 25th February I 21

22. 2
How will we know that a
change is an improvement?
Continuous Improvement in PHP Projects I Mayflower GmbH I 25th February I 22

23. 3
What changes will result in
improvements?
Continuous Improvement in PHP Projects I Mayflower GmbH I 25th February I 23

24. Plan Do
Act Check
Continuous Improvement in PHP Projects I Mayflower GmbH I 25th February I 24

25. PLAN:
How should it be?
Continuous Improvement in PHP Projects I Mayflower GmbH I 25th February I 25

26. Plan Do
Act Check
Continuous Improvement in PHP Projects I Mayflower GmbH I 25th February I 26

27. DO:
What and how do we do it?
Continuous Improvement in PHP Projects I Mayflower GmbH I 25th February I 27

28. Plan Do
Act Check
Continuous Improvement in PHP Projects I Mayflower GmbH I 25th February I 28

29. CHECK:
What did we achieve?
Continuous Improvement in PHP Projects I Mayflower GmbH I 25th February I 29

30. Plan Do
Act Check
Continuous Improvement in PHP Projects I Mayflower GmbH I 25th February I 30

31. ACT:
What else do we have to do?
Continuous Improvement in PHP Projects I Mayflower GmbH I 25th February I 31

32. Plan Do
Act Check
Continuous Improvement in PHP Projects I Mayflower GmbH I 25th February I 32

33. So, how to integrate
Continuous Improvement
in your daily work?
Continuous Improvement in PHP Projects I Mayflower GmbH I 25th February I 33

34. I t‘s
!
Continuous Improvement in PHP Projects I Mayflower GmbH I 25th February I 34

35. SCRUM
Continuous Improvement in PHP Projects I Mayflower GmbH I 25th February I 35

36. SCRUM 24 hours
Sprint
2 weeks
Sprint goal
Return
Sprint
Potentially shippable
Return
Cancel backlog
product increment
Gift fixes
CS wrap
Gift wrap
Cancel CS fixes
Product
backlog
Continuous Improvement in PHP Projects I Mayflower GmbH I 25th February I 36

37. Extreme Programming
Continuous Improvement in PHP Projects I Mayflower GmbH I 25th February I 37

38. Continuous Improvement in PHP Projects I Mayflower GmbH I 25th February I 38

39. Continuous Improvement in PHP Projects I Mayflower GmbH I 25th February I 39

40. Agile methods are about
working in iteratons.
Continuous Improvement in PHP Projects I Mayflower GmbH I 25th February I 40

41. Conclusion:
Combine agile methods!
Continuous Improvement in PHP Projects I Mayflower GmbH I 25th February I 41

42. Scrum + XP + Continuous Improvement
EPIC WIN Continuous Improvement in PHP Projects I Mayflower GmbH I 25th February I 42

43. Common problems
in PHP projects
Continuous Improvement in PHP Projects I Mayflower GmbH I 25th February I 43

44. Code Aging
Continuous Improvement in PHP Projects I Mayflower GmbH I 25th February I 44

45. Technical Debt
Continuous Improvement in PHP Projects I Mayflower GmbH I 25th February I 45

46. We can do things quick and dirty.
The dirty way leads to technical debt.
This can kill a software.
Continuous Improvement in PHP Projects I Mayflower GmbH I 25th February I 46

47. Now: The slide for your
management.
Continuous Improvement in PHP Projects I Mayflower GmbH I 25th February I 47

48. Costs per change request
rising frequency
DEAD END!
Benefits per change request
Continuous Improvement in PHP Projects I Mayflower GmbH I 25th February I 48

49. So please pay back your
technical debt!
Continuous Improvement in PHP Projects I Mayflower GmbH I 25th February I 49

50. Always refactor your
codebase!
Continuous Improvement in PHP Projects I Mayflower GmbH I 25th February I 50

51. PHP Tool Support
Continuous Improvement in PHP Projects I Mayflower GmbH I 25th February I 51

52. You need a continuous
integration server.
Even if you don‘t do
unittests.
Continuous Improvement in PHP Projects I Mayflower GmbH I 25th February I 52

53. But don‘t tell that Sebastian!
Continuous Improvement in PHP Projects I Mayflower GmbH I 25th February I 53

54. Jenkins CI Server
Continuous Improvement in PHP Projects I Mayflower GmbH I 25th February I 54

55. Template for Jenkins Jobs for PHP Projects
http://jenkins-php.org
Continuous Improvement in PHP Projects I Mayflower GmbH I 25th February I 55

56. Continuous Improvement in PHP Projects I Mayflower GmbH I 25th February I 56

57. $ pear channel-discover pear.pdepend.org
$ pear channel-discover pear.phpmd.org
$ pear channel-discover pear.phpunit.de
$ pear channel-discover components.ez.no
$ pear channel-discover pear.symfony-project.com
$ pear install pdepend/PHP_Depend
$ pear install phpmd/PHP_PMD
$ pear install phpunit/phpcpd
$ pear install phpunit/phploc
$ pear install PHPDocumentor
$ pear install PHP_CodeSniffer
$ pear install --alldeps phpunit/PHP_CodeBrowser
$ pear install --alldeps phpunit/PHPUnit
Continuous Improvement in PHP Projects I Mayflower GmbH I 25th February I 57

58. PHP_CodeSniffer
Continuous Improvement in PHP Projects I Mayflower GmbH I 25th February I 58

59. Continuous Improvement in PHP Projects I Mayflower GmbH I 25th February I 59

60. Why do we need PHPMD?
Continuous Improvement in PHP Projects I Mayflower GmbH I 25th February I 60

61. How does PHPMD work?
<?php
print "Hello, world!"; PHP_Depends scans your code
?>
Continuous Improvement in PHP Projects I Mayflower GmbH I 25th February I 61

62. How does PHPMD work?
<?xml version="1.0" encoding="UTF-8"?>
<PDepend>
<Packages>
<Package name="PHP_CodeBrowser">
<Stats>
<TotalClasses>10</TotalClasses>
<ConcreteClasses>9</ConcreteClasses>
...
</PDepend>
PHPMD scans the report ...
Continuous Improvement in PHP Projects I Mayflower GmbH I 25th February I 62

63. How does PHPMD work?
<?xml version="1.0" encoding="UTF-8" ?>
<pmd version="0.2.7" timestamp="2010-10-28T16:27:21+02:00">
<file name="/Users/thorsten/htdocs/PHP_CodeBrowser/src/
CLIController.php">
<violation beginline="201" endline="275"
rule="CyclomaticComplexity" ruleset="Code Size Rules"
package="PHP_CodeBrowser" externalInfoUrl="http://phpmd.org/rules/
codesize.html#cyclomaticcomplexity" class="CbCLIController"
method="run" priority="3">
The method run() has a Cyclomatic Complexity of 10.
</violation>
...
</pmd>
Continuous Improvement in PHP Projects I Mayflower GmbH I 25th February I 63

64. PHP_CodeBrowser
Continuous Improvement in PHP Projects I Mayflower GmbH I 25th February I 64

65. What is PHP_CodeBrowser?
I a code browser :-)
I syntax highlighting for PHP files
I colored error sections found by PHP QA tools like
•PHPUnit
•phpcpd
•PHP_CodeSniffer
•Code Coverage
•PHPMD
Continuous Improvement in PHP Projects I Mayflower GmbH I 25th February I 65

66. How to get PHP_CodeBrowser?
I Git repository:
http://github.com/mayflowergmbh/PHP_CodeBrowser
I PHPUnit PEAR channel:
$ pear channel-discover pear.phpunit.de
$ pear install --alldeps phpunit/PHP_CodeBrowser
Continuous Improvement in PHP Projects I Mayflower GmbH I 25th February I 66

67. PHP_CodeBrowser
presentation
Continuous Improvement in PHP Projects I Mayflower GmbH I 25th February I 67

68. Cinder
Continuous Improvement in PHP Projects I Mayflower GmbH I 25th February I 68

69. Why do we need Cinder?
I Integrate feedback directly
•static code analysis
•coding style
•unittests results
I Decrease number of tools
I Based on existing artifacts from Continuous Integration
I Conform with IDE usabiliy guidelines
Continuous Improvement in PHP Projects I Mayflower GmbH I 25th February I 69

70. Cinder Features
I Eclipse plugin
•Eclipse can be used for many languages
•Well documentated plugin infrastructure
I Reads Hudson or phpUnderControl XML data
I Aggregates findings by the CI system
I Language of the project doesn‘t matter
I Periodic updates of input data
Continuous Improvement in PHP Projects I Mayflower GmbH I 25th February I 70

71. How does Cinder work?
periodically request from Cinder plugin
Developer Continuous
PC with Integration
Eclipse Server
XML CI data from CI server
Continuous Improvement in PHP Projects I Mayflower GmbH I 25th February I 71

72. How to install Cinder?
Continuous Improvement in PHP Projects I Mayflower GmbH I 25th February I 72

73. How to install Cinder?
Continuous Improvement in PHP Projects I Mayflower GmbH I 25th February I 73

74. How to install Cinder?
Continuous Improvement in PHP Projects I Mayflower GmbH I 25th February I 74

75. How to install Cinder?
Continuous Improvement in PHP Projects I Mayflower GmbH I 25th February I 75

76. Cinder
presentation
Continuous Improvement in PHP Projects I Mayflower GmbH I 25th February I 76

77. How to get these tools?
Continuous Improvement in PHP Projects I Mayflower GmbH I 25th February I 77

78. phpmd.org
github.com/mayflowergmbh
phpunit.de
opensource.mayflower.de
jenkins-php.org
Continuous Improvement in PHP Projects I Mayflower GmbH I 25th February I 78

79. How to use that tools?
Continuous Improvement in PHP Projects I Mayflower GmbH I 25th February I 79

80. Set up a continuous
integration server!
Continuous Improvement in PHP Projects I Mayflower GmbH I 25th February I 80

81. Use the artifacts of the PHP
QA Tools!
Continuous Improvement in PHP Projects I Mayflower GmbH I 25th February I 81

82. Take some time for
refactoring in every sprint.
Continuous Improvement in PHP Projects I Mayflower GmbH I 25th February I 82

83. Questions?
Continuous Improvement in PHP Projects I Mayflower GmbH I 25th February I 83

84. Gràcies!
Thank you very much for your attention!
Contact Thorsten Rinne
thorsten.rinne@mayflower.de
+49 89 242054-31
Mayflower GmbH
Mannhardtstr. 6
80538 München
Germany
© 201 Mayflower GmbH
1