Code Quality Management Best Practices
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This document outlines pragmatic steps to improve code quality, including using a coding standard, deploying static analysis, defining metrics, and performing manual code reviews. It notes that quality is important but hard to define, and defects can be introduced at any stage of development. The document recommends using Perforce tools like Helix QAC to enable consistent code quality through local and server-side static analysis, metrics tracking in a dashboard, and annotations to improve code reviews between teams.
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Code Quality Management Best Practices
- 1. Pragmatic Steps to Improve Code Quality SEPTEMBER 2019
- 2. perforce.com Hereâs What Weâll Cover Today 1 2 3 The Software Quality Challenge Steps to Improve Code Quality How to Improve Quality with Perforce
- 3. perforce.com Presenter Richard Bellairs Product Marketing Manager Richard has 20+ years of experience across a wide range of industries. He held electronics and software engineering positions in the manufacturing, defense, and test and measurement industries in the nineties and early noughties before moving to product management and product marketing. He now champions Perforceâs market-leading code quality management solution.
- 4. perforce.com The Software Quality Challenge https://www.computerworld.com/article/3412197/top-software-failures-in-recent-history.html Nissanâs Airbag Glitch S A F E T Y Wannacry S E C U R I T Y Amazonâs 1p Price Glitch F I N A N C I A L Facebook, Instagram, and WhatsApp B R A N D R E P U T A T I O N
- 6. perforce.com QUALITY F U N C T I O N A L Customer Perception N O N - F U N C T I O N A L Performance S T R U C T U R A L Profitability Defining âQualityâ
- 7. perforce.com Sources of Defects REQUIREMENTS ARCHITECTURE DESIGN SOURCE CODE TEST MATERIALS DOCUMENTS DATABASE WEBSITES
- 8. perforce.com QA can Become Self-defeating https://www.blackliszt.com R E C O M M E N D E D R E A D I N G : Getting It Right Keeping It Right
- 9. perforce.com Ensure that software is: âą Safe: It can be used without causing harm. âą Secure: It canât be hacked. âą Reliable: It functions as it should, every time. âą Testable: It can be tested at the code level. âą Maintainable: It can be maintained, even as your codebase grows. âą Portable: It works the same in every environment. Achieving High Code Quality: Use a Coding Standard
- 10. perforce.com Why use a Coding Standard? Compliance with industry standards (e.g., ISO) Consistent code quality â no matter who writes the code Software security from the start Reduced development costs and accelerated time to market 1 2 3 4
- 11. perforce.com Achieving High Code Quality: Deploy Static Analysis
- 12. perforce.com Types of Statically Detectable Code Defects Defect Type Example Static Memory Static buffer overrun Dynamic Memory Dynamic buffer overrun Stack-related Stack overflow Numerical Division by zero Resource Management Invalid access already freed memory Pointer-related Dereferencing a NULL pointer Concurrency Deadlock Inappropriate code Redundant code Other Uninitialized variables
- 13. perforce.com Achieving High Code Quality: Define Metrics
- 14. perforce.com Using the Helix QAC Dashboard to Track Code Metrics VERSION CONTROL SYSTEM Local analysis allows for better quality control early. Server-side analysis allows deep analysis and provides results in a web interface. Other collaborators can also access results through web interface. Combine both local and server analysis DASHBOARD âGet it Rightâ âKeep it Rightâ
- 15. perforce.com Team Collaboration â Management âą Reporting: âą Helps you meet project deadlines. âą Retrospective reporting. âą Metrics: âą Understand how your project is progressing. âą Is the software quality improving over time? âą Is the defect injection rate decreasing?
- 16. perforce.com Achieving High Code Quality: Perform Manual Code Reviews https://www.perforce.com/blog/qac/9-best-practices-code-reviews Know what to look for. Build and test first. Review regularly and in small chunks. Give constructive feedback. Use a collaboration and tracking tool.
- 17. perforce.com Team Collaboration â QA âą Annotations: âą Improve communication between your teams âą Identify which areas need the most attention âą Enhance peer reviews âą Code Review: âą See the control flow through your functions âą Reduce complexity and increase maintainability âą Help ensure your project is delivered on time
- 18. perforce.com Summary 1 2 3 4 5 Quality is important Quality is hard to define Defects can be introduced at any stage Too many QA activities can be bad news Perforce tools enable a pragmatic approach to code quality Practical Steps for Code Quality âą Use a Coding Standard âą Deploy Static Analysis âą Track Metrics âą Conduct Manual Code Reviews
- 19. Questions?