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#4 code quality
- 1. Code quality toolsand metrics eleks.com
- 2. Agenda • Good codeor not? • Metrics • Tools
- 5. Which code isgood • Metrics does exists to understand fitness of your code • Various tools exists which helps to analyze it
- 6. Technical debt ..is extradevelopment work that arises when code that is easy to implement in the short run is used instead of applying the best overall solution.
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- 8. Cyclomatic complexity It providesa numeric value representing the complexity of a function or method
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- 10. Chidamber & Kemererobject-oriented metrics Shyam R. Chidamber Chris F. Kemerer http://faculty.salisbury.edu/~stlauterburg/cosc425/ metricforood_chidamberkemerer94.pdf
- 11. Chidamber & Kemererobject-oriented metrics Name Description DIT Depth of inheritance tree NOC Number of children NPM Number of public methods RFC Response for class - # of methods executed due to method call CE Efferent coupling - # of other classes this class uses (outgoing calls) CA Afferent coupling - how many other classes use this class (incoming calls) WMC Weighted methods/class ∑ of cyclomatic complexity
- 12. Limitations of metrics •no “1 True Metric” • gathered but ignored • inaction / overaction • signal to noise prefer trends to discrete values
- 13. SonarQube - http://www.sonarqube.org •Centralize code quality metrics • Plugin based Reports • Code coverage • Rule compliance • Documentation • Complexity • Technical debt
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- 19. Inspired by Technology. Drivenby Value. Find us at eleks.com Have a question? Write to eleksinfo@eleks.com