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© 2010 Seapine Software, Inc. All rights reserved.<br />Improving the Development Lifecycle with a Quality-Centric Approac...
Agenda<br />The problem with software quality<br />What is quality-centric ALM and how can it help?<br />How do I implemen...
“Programming today is a race between software engineers striving to build bigger and better idiot-proof programs, and the ...
Cost of Poor Software Quality<br />NASA lost a $125 million Mars orbiter because one engineering team used metric units wh...
Software Quality by the Numbers<br />There can be as many as 20 to 30 bugs per 1,000 lines of software code.		—Sustainable...
So Why Don’t We Do it Better?<br />“Testing will find the problems” <br />“We don’t have the time to look for any problems...
So Why Don’t We Do it Better?<br />We Don’t Know Where to Begin<br />
There are Solutions<br />A solution to these problems is a quality-centric approach, like quality-centric ALM<br />In qual...
Quality-Centric ALM<br />Key Concept:Software development needs to be transformed into a managed, quality-centric business...
It’s Not Rocket Science<br />
But It Requires Changes<br />
Quality-Centric ALM Tenets<br />Engineering is a discipline<br />You cannot test your way to quality<br />Error prevention...
Quality-Centric ALM Keys to Success<br />People<br />Process<br />Metrics<br />Continuous Improvement<br />Automation<br /...
Keys to Success: People<br />Quality starts at the top<br />The CEO and top management define the culture<br />Pride of wo...
Keys to Success: Process<br />A process defines your practice<br />It’s a guide, not a rule book<br />No single ‘correct’ ...
Keys to Success: Metrics<br />When you can measure what you are speaking about, and express it in numbers, you know someth...
Keys to Success: Continuous Improvement<br />Requires repeatable process and key metrics <br />Review metrics and the proc...
Keys to Success: Automation<br />Automation removes manual activity from repetitive tasks<br />
Keys to Success: Customer Chain<br />Satisfy the End User<br />“The one number you need to grow [related to customer satis...
Benefits of Quality-Centric ALM<br />Lower development costs<br />Bugs fixed earlier in the development cycle cost less to...
© 2010 Seapine Software, Inc. All rights reserved.<br />Thank you<br />
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Improving the Development Lifecycle with a Quality-Centric Approach

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  • The metric/US customary units mix-up that destroyed the craft was caused by a human error in the software development. The thrusters on the spacecraft, which were intended to control its rate of rotation, were controlled by a computer that underestimated the effect of the thrusters by a factor of 4.45. This is the ratio between a pound force (the standard unit of force in the United States customary units system) and a newton (the standard unit in the metric system). The software was working in pounds force, while the spacecraft expected figures in newtons; 1 pound force equals approximately 4.45 newtons.The software had been adapted from use on the earlier Mars Global Surveyor, and was not adequately tested before launch. The navigation data provided by this software was also not cross-checked while in flight. The Mars Climate Orbiter thus drifted off course during its voyage and entered a much lower orbit than planned, and was destroyed by atmospheric friction.Multiple calculations which indicated that the probe was off course were ignored.
  • Transcript of "Improving the Development Lifecycle with a Quality-Centric Approach"

    1. 1. © 2010 Seapine Software, Inc. All rights reserved.<br />Improving the Development Lifecycle with a Quality-Centric Approach<br />Seapine ALM Tour<br />Huntsville, Alabama <br />Peter VarholSolutions Evangelist, Seapine Software<br />
    2. 2. Agenda<br />The problem with software quality<br />What is quality-centric ALM and how can it help?<br />How do I implement quality-centric ALM?<br />Benefits of quality-centric ALM<br />Wrap-up and questions<br />
    3. 3. “Programming today is a race between software engineers striving to build bigger and better idiot-proof programs, and the Universe trying to produce bigger and better idiots. So far, the Universe is winning.” - Rick Cook, The Wizardry Compiled<br />Why Quality in ALM?<br />
    4. 4. Cost of Poor Software Quality<br />NASA lost a $125 million Mars orbiter because one engineering team used metric units while another used English units for a key spacecraft operation, according to a review finding.<br />"Our inability to recognize and correct this simple error has had major implications," said JPL Director Edward Stone.<br />
    5. 5. Software Quality by the Numbers<br />There can be as many as 20 to 30 bugs per 1,000 lines of software code. —Sustainable Computing Consortium<br />There are no methods of removing software defects or errors that are 100% effective. —“Software Quality: Analysis and Guidelines for Success,” by Capers Jones <br />32% of organizations say that they release software with too many defects. —Cutter Consortium <br />38% of organizations believe they lack an adequate software quality assurance program. —Cutter Consortium <br />27% of organizations do not conduct any formal quality reviews. —Cutter Consortium <br />Formal design and code inspections average about 65% in defect removal efficiency. Most forms of testing are less than 30% efficient. —“Software Quality: Analysis and Guidelines for Success,” by Capers Jones <br />Developers spend about 80% of development costs on identifying and correcting defects. —The National Institute of Standards and Technology <br />Peer reviews of software will catch 60% of defects. —Institute of Electrical and Electronics Engineer<br />
    6. 6. So Why Don’t We Do it Better?<br />“Testing will find the problems” <br />“We don’t have the time to look for any problems”<br />Management perceives little ROI from an investment in QA personnel and testing tools<br />Developers want to work on new, cool features rather than on bug fixes<br />QA is not involved from the beginning of the project so they are always behind<br />
    7. 7. So Why Don’t We Do it Better?<br />We Don’t Know Where to Begin<br />
    8. 8. There are Solutions<br />A solution to these problems is a quality-centric approach, like quality-centric ALM<br />In quality-centric ALM, quality is central to the application development lifecycle<br />Not testing, but quality<br />Testing flows from quality practices<br />
    9. 9. Quality-Centric ALM<br />Key Concept:Software development needs to be transformed into a managed, quality-centric business process where quality is a fundamental part of every phase of the software development lifecycle.<br />
    10. 10. It’s Not Rocket Science<br />
    11. 11. But It Requires Changes<br />
    12. 12. Quality-Centric ALM Tenets<br />Engineering is a discipline<br />You cannot test your way to quality<br />Error prevention is cheaper and better than error detection<br />Begin with the end in mind<br />Software quality needs to be factored in to every part of the design and development process<br />Quality is more a culture or philosophy than a process<br />Investment in quality more than pays for itself<br />
    13. 13. Quality-Centric ALM Keys to Success<br />People<br />Process<br />Metrics<br />Continuous Improvement<br />Automation<br />Satisfying the Customer Chain<br />
    14. 14. Keys to Success: People<br />Quality starts at the top<br />The CEO and top management define the culture<br />Pride of work<br />The culture enables people to care about their work and results<br />
    15. 15. Keys to Success: Process<br />A process defines your practice<br />It’s a guide, not a rule book<br />No single ‘correct’ process<br />It’s got to work for your unique circumstances<br />Any process is better than no process<br />If your process is documented and repeatable, you can measure and improve it<br />
    16. 16. Keys to Success: Metrics<br />When you can measure what you are speaking about, and express it in numbers, you know something about it.<br /> Baron William Thomson Kelvin<br />
    17. 17. Keys to Success: Continuous Improvement<br />Requires repeatable process and key metrics <br />Review metrics and the process periodically Make the process review a team activity<br />Document the changes and begin measuring again<br />
    18. 18. Keys to Success: Automation<br />Automation removes manual activity from repetitive tasks<br />
    19. 19. Keys to Success: Customer Chain<br />Satisfy the End User<br />“The one number you need to grow [related to customer satisfaction is] “‘Would you recommend this company/product/service to friends and colleagues?’”– Harvard Business Review, December 2003<br />End User<br />Product Manager<br />Designer<br />Coder<br />Tester<br />
    20. 20. Benefits of Quality-Centric ALM<br />Lower development costs<br />Bugs fixed earlier in the development cycle cost less to fix<br />Teams understand product goals and can do their jobs right the first time<br />Higher product quality<br />Fewer bugs at each stage of the development process<br />Better understanding of causes of poor quality and changes needed to correct them<br />
    21. 21. © 2010 Seapine Software, Inc. All rights reserved.<br />Thank you<br />
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