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Perspectives onImprovingproductivityin test engineering                  T Ashok                  ash@stagsoftware.com    ...
Key challenges that we faceContinuous refinement of business requirementsNeed to deliver software in shorter timeframesTech...
The focus of this presentation…      .. is to discuss on the productivity aspects of test engineering                Produ...
What should a good system have?The three important properties are : Effectiveness, Consistency, Efficiency   For a test eng...
How is productivity linked to these properties?                                                                      Doing...
How to ensure that these properties are met?     Scientific basis of thinking                                      Methodol...
Consider an example of travel… …where our productivity enhancement objective is to reach the destination in shorter time a...
How can we improve productivity?Lower complexity by decomposing problems better.Be goal driven, by being defect centric.  ...
Resource viewpoint on productivityExtra resource is handy to reduce cycle time, reduce effort.Look at the various resource...
Hypothesis Based Testing (HBT)A scientific personal test methodology to deliver clean software.Consists ofSIX stages of “do...
Convert expectations to cleanliness criteria, setup a goal of potential typesof defects to uncover and scientifically uncov...
Summarizing... Tooling & process improvement     may increase productivity in a limited manner. A better basis for doing t...
Thank you!                        Follow us                                    @stagsoftCopyright 2011 STAG Software Priva...
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Perspectives on improving productivity in test engineering

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This presentation discusses the productivity aspects in test engineering

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Perspectives on improving productivity in test engineering

  1. 1. Perspectives onImprovingproductivityin test engineering T Ashok ash@stagsoftware.com in.linkedin.com/in/AshokSTAG
  2. 2. Key challenges that we faceContinuous refinement of business requirementsNeed to deliver software in shorter timeframesTechnology continues to evolve rapidlyShortage of highly skilled peopleTight budgets, more expected with lessCustomer expectations on quality constantly increasing Copyright 2011 STAG Software Private Limited. All rights reserved. www.stagsoftware.com
  3. 3. The focus of this presentation… .. is to discuss on the productivity aspects of test engineering Productivity is about 1. Doing things faster 2. Doing things with lesser effort How can we improve test engineering productivity to - perform testing quicker? - do with lesser effort and therefore lower costs? The typical ways to productivity improvement seem to be >> Reduce test cycle effort by being ‘agile’ >> Squeeze more cycles to minimize surprises later >> Focus on automated tests to speed up cycles Let us see this problem from a different perspective… Copyright 2011 STAG Software Private Limited. All rights reserved. www.stagsoftware.com
  4. 4. What should a good system have?The three important properties are : Effectiveness, Consistency, Efficiency For a test engineering system: Effectiveness implies “Find key business issues” Consistency implies “Outcome is independent of who does it” Efficiency implies “Do in shortest time with least money” Note that the order is effective first, consistent next & efficient finally A good system therefore must be effective (find good defects), consistent (able to scale), efficient (do more with less) Copyright 2011 STAG Software Private Limited. All rights reserved. www.stagsoftware.com
  5. 5. How is productivity linked to these properties? Doing things better implies less re-work. Effectiveness Serious productivity gain! Lowers cost and time! Implies that the process can be broken down. Consistency Allows for simplification & hence de-skilling. Lowers cost! Speed up using technology/tooling. Efficiency Lowers cycle time! Copyright 2011 STAG Software Private Limited. All rights reserved. www.stagsoftware.com
  6. 6. How to ensure that these properties are met? Scientific basis of thinking Methodology Effectiveness Clear way of doing at Process Consistencypersonal & organization level Appropriate tooling to Technology Efficiency reduce cycle time & do more Copyright 2011 STAG Software Private Limited. All rights reserved. www.stagsoftware.com
  7. 7. Consider an example of travel… …where our productivity enhancement objective is to reach the destination in shorter time at lower cost. How can we reach the destination in shorter time? To reduce travel time; we need a higher horsepower car, a lighter vehicle, a skilled driver, a shorter route, less de-tour, light traffic, & no speed bumps.Can we see parallels to test engineering?1. Higher horsepower implies “strong method” & better technology/tooling.2. Lighter vehicle implies lowering the complexity by better decomposition.3. Straight roads/no speed bumps implies better visibility (metrics) & agility.4. Shorter route means process adjustment/optimization at individual level. Copyright 2011 STAG Software Private Limited. All rights reserved. www.stagsoftware.com
  8. 8. How can we improve productivity?Lower complexity by decomposing problems better.Be goal driven, by being defect centric. es y en og s’Ensure test case completeness via engineering approach. iv ol ct odUse a judicious mix of static & dynamic evaluation approach.. ffe h etSee things clearly with goal-focused metrics system. MReact faster, with quicker feedback. ‘e st ss ’Create a good ‘personal process’. cy si ce enDecompose process to de-skill. on ro PCut wasteful documentation. ‘cEnsure appropriate technology/tooling for observation/stimulation. en g ’ ci in cyFor mundane tests, be sure of ROI. ffi l ‘e TooBe clear of what quality levels need automation.Automation is development, pay attention to architecture/code. Copyright 2011 STAG Software Private Limited. All rights reserved. www.stagsoftware.com
  9. 9. Resource viewpoint on productivityExtra resource is handy to reduce cycle time, reduce effort.Look at the various resources at our disposal and their cost implicationsHuman intellect – BIGGEST resourceCan we harness more from this? Mature ones cost a lot!How can we improve maturity?A scientific & engineering methodology would help. Technology & Tools Technology to observe, probe, analyze Tooling to reach the innards that a human hand cannot reach! Tooling to free our mind, hands & eyes! Process & Artifacts Personal process of thinking and doing Test support stuff – checklists, guidelines, patterns Finer decomposition to aid de-skilling Copyright 2011 STAG Software Private Limited. All rights reserved. www.stagsoftware.com
  10. 10. Hypothesis Based Testing (HBT)A scientific personal test methodology to deliver clean software.Consists ofSIX stages of “doing” Powered by EIGHT disciplines of “thinking” More at www.slideshare.net/stagsoft/an-introduction-to-hypothesis-based-testing Copyright 2011 STAG Software Private Limited. All rights reserved. www.stagsoftware.com
  11. 11. Convert expectations to cleanliness criteria, setup a goal of potential typesof defects to uncover and scientifically uncover them. More at www.slideshare.net/stagsoft/an-introduction-to-hypothesis-based-testing Copyright 2011 STAG Software Private Limited. All rights reserved. www.stagsoftware.com
  12. 12. Summarizing... Tooling & process improvement may increase productivity in a limited manner. A better basis for doing things can be significant productivity enhancer. The key resource is our intellect,improve this and we have significant productivity boost Process is at various levels, improve thinking process and this can lead to productivity gains Copyright 2011 STAG Software Private Limited. All rights reserved. www.stagsoftware.com
  13. 13. Thank you! Follow us @stagsoftCopyright 2011 STAG Software Private Limited. All rights reserved. www.stagsoftware.com

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