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In many cases, the end of the year gives you time to step back and take stock of the last 12 months. This is when many of us take a hard look at what worked and what did not, complete performance reviews, and formulate plans for the coming year. For me, it is all of those things plus a time when I u...
SYS-CON.TV
Agile and Defect
“We will deliver defect free software every time.”

“We will deliver defect free software every time.”

Many software company have embraced some variant of this motto. This is the right thing to do … after all who wants software which has bugs. It is an open and shut case – right?

Or is it? … Especially in the context of agile development.

Let us start by asking two stupid question:

  • How do you measure number of defects?
  • When do you consider a software to be delivered?

Standard method of measuring defect is to:

  • Define and freeze the requirement
  • Derive test cases from the requirement
  • Use the test cases to test the software
  • Measure the number of test cases that has failed

Defect free software means all the identified test cases are passed.

  • But from the perspective of the user is this sufficient?
  • How do you draw the line between what has to be explicitly stated and is obvious but not stated?
  • When do you consider a delivery to have been made? After every sprint?
  • Can you ensure that every user story implemented in a sprint is without any defect?

These questions are not rhetorical. These questions need to be answered as in many organization developer performance measurement and even incentive depend measure of defect.

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About Udayan Banerjee
Udayan Banerjee is CTO at NIIT Technologies Ltd, an IT industry veteran with more than 30 years' experience. He blogs at http://setandbma.wordpress.com.
The blog focuses on emerging technologies like cloud computing, mobile computing, social media aka web 2.0 etc. It also contains stuff about agile methodology and trends in architecture. It is a world view seen through the lens of a software service provider based out of Bangalore and serving clients across the world. The focus is mostly on...
  • Keep the hype out and project a realistic picture
  • Uncover trends not very apparent
  • Draw conclusion from real life experience
  • Point out fallacy & discrepancy when I see them
  • Talk about trends which I find interesting
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