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Static Testing: We Know It Works, So Why Don’t We Use It?
- 1. W14 Test Techniques 5/6/2015 3:00:00 PM Static Testing: We Know It Works, So Why Don’t We Use It? Presented by: Meenakshi Muthukumaran Tata Consultancy Services Brought to you by: 340 Corporate Way, Suite 300, Orange Park, FL 32073 888-268-8770 ∙ 904-278-0524 ∙ sqeinfo@sqe.com ∙ www.sqe.com
- 2. Meenakshi Muthukumaran Tata Consultancy Services Meenakshi Muthukumaran is a test automation strategist and consultant with Assurance Services Unit of Tata Consultancy Services. Meena advises customers on product selection, deployment, and effective use of static testing tools, and leads the professional research team that evaluates and grades different static testing tools. She started her career as a software developer and worked in the United States for several years in technology and management roles. With more than ten years of experience in the IT industry, Meena works with customers across geographies and industries to build high-quality software by addressing their challenges related to code quality and post-production defects.
- 3. 1Copyright © 2014 Tata Consultancy Services Limited Static Testing: We Know It Works, Why Don’t We Use It? May 2015
- 4. 2 With You Today… Meena has 10+ years of overall experience in IT industry and has been with TCS for past 4 years. She is a Masters in IT and after engineering, she started her career as a software developer. Thereafter she has worked in multiple domains spanning both technology as well as management Meenakshi Muthukumaran SQG Consultant, Assurance Services, Tata Consultancy Services (TCS) Meena has worked with multiple Fortune 500 customers across geographies and industries in addressing their business objective by certifying and assuring high- quality software
- 5. 3 Agenda Business Drivers The Quality Assurance Lens Why Static Testing ? Putting Static Testing to work Static Testing: Delivered results
- 6. 4 Businesses today need to address… Complexity Digital customers New age competition Security concerns First time right
- 7. 5 Else will lead to… Delays in time to market Increased ops cost Reduced revenues Dissatisfied customer
- 8. 6 Incomprehensive QA can erode your business… SEC fines more than $40 million compensations claims. Reputational damage Stocks declined 72% in 6 months More than 500 death months Lost $440 million in 30 minutes; Loss of 75% in stock value in 2 business days
- 9. 7 Having a holistic perspective… WHAT YOU KNOW WHAT SOME MIGHT KNOW WHAT YOU REALLY SHOULD KNOW TESTREVIEW Correctness Efficiency Reliability Maintenance Cost Program Structure Coding Practices Coupling Complexity Readability Flexibility Reusability Maintainability Testability
- 10. 8 Will get you to.. Inspection Software walk- throughs Peer reviews Static Testing
- 11. 9 Why do I need Static Testing? Think OUT of BUGS
- 12. 10 Static Analysis: Effective way of Static Testing Code base Static code analyzer Defects/Violation Automating Code Inspections Analyzing the code without executing Making effective • Tracks suggestions • Allows follow-up tasks • Aids comparing before/after changes • Integrates source code repositories
- 13. 11 Although research shows Static analysis is effective… Static Analysis has comparatively higher defect removal efficiency Source: Caper Jones: SOFTWARE QUALITY IN 2013: A SURVEY OF THE STATE OF THE ART
- 14. 12 It isn’t flying high as it should Limited Awareness Tools Unavailability Time shortage Mindset
- 16. 14 Bringing mindset change… Top down approach can drive static testing
- 17. 15 With a 7 Point Strategy for Tool Selection… Deployment Strategy Technology Coverage Supporting Environment Product Update Triage & Remediation Support Reporting Capabilities Enterprise Level Support
- 18. 16 Will Deliver Certainty Early defect detection Faster time to Market Reduction in TCO Progressive improvement in Quality
- 19. 17 Success story: Leading Oilfield Services Company Challenges • Performance: Slow response rates. Irritated users • Stability: Systems hang during key transactions • Increased # of problem tickets/ issues to be resolved Solution • Analysis of the base code • Identification of exact elements causing issues • In-depth analysis of the code post fixing issues Results • Improvement in overall application health with respect to Performance, Robustness and Security • Actual performance of the application improved by up to 50% on some transactions. Maintainability 3% Reliability 10% Efficiency 13% Security 22%
- 20. 18 Success story: Leading Oilfield Services Company 0 0.5 1 1.5 2 2.5 3 3.5 Maintainability Reliability Efficiency Security 3.09 2.91 2.82 2.71 3.19 3.21 3.2 3.31 Quality Evolution Before After Maintainability 3% Reliability 10% Efficiency 13% Security 22%
- 21. 19 Some useful directions and … Inefficient error handling expensive loops performance problems Select * null pointer dereferences database connection leaks SQL injection Cross-site Scripting Hardcoded Credentials Insecure File Upload Insufficient Session Expiration Poor Memory/ Network Mgmt Improper SQL and Data Handling Dynamic Instantiation
- 22. 20 And Best practices from the engagement Create Awareness Measure Quality Embed in lifecycle Integrate with existing tools Mandate it Improve & Control
- 23. 21 Prevention is better than cure Quality cannot be monitored or tracked unless measured Quality should not be a practice – rather be the WAY of life. A quick recap
- 24. Thank You IT Services Business Solutions Consulting Please visit us at Booth# 17 or write to us at: global.assurance@tcs.com