Accuracy vs Precision in Estimation

Which is better: An estimate of “roughly 2 weeks” or an estimate of “4.75 days”? Personally I favour accuracy over precision. “4.75” is attractive because it very precise and a smaller number, but “roughly 2 weeks” might be more accurate. And estimating must be accurate to be any use for planning.
Continue reading

Declarative vs Imperative Gherkin Scenarios for Cucumber

Everybody I’ve met that is new to Gherkin starts with an Imperative style of scenarios. The Imperative approach is simple and intuitive and reflects what manual testers do. But I hate the Imperative style with a passion. I favour a Declarative style of scenarios not least because a declarative style means I can test business rules. The UI is prone to change but the business rules tend to be more stable.
Continue reading

Developers don’t have time for code reviews and unit tests

The ticket moves to “Dev Done” but there are no unit tests and the code hasn’t been reviewed. When challenged the developer says “That’s because I don’t have time for that stuff”. If I hear that I want to know why they feel they don’t have time, then I give them the time.
Continue reading

Fluid Planning and Execution Creates Agility

Thought leaders in the US military are challenging traditional approaches to command and control. These military innovators are proposing a more fluid approach that allows simultaneous planning and execution. It is good to see they are catching up but as an Agile practitioner I already do fluid planning and execution.
Continue reading

Whose responsibility is testing anyway?

I have a painfully small manual test team, sometimes 1 tester per 15 developers. The answer to the obvious question “who tests?” is “mostly the developers”. Of course this only works if you’re doing extensive automated testing including Specification by Example with a tool such as Cucumber.
Continue reading

No space to co-locate team – think again

I knew I had a big problem when I walked into the new programme space and found 18 desks. 18 wasn’t enough. I predicted I would have about 35 people on the team and I wanted them together. Co-location is so important to me that I will always challenge the assumption of “there is no space”. And I have found there are lots of things I can do to get my team together.
Continue reading

Avoid the Refactoring Branch of Doom

Sometimes I make mistakes. One of them was when I commissioned what I now affectionately call the Refactoring Branch of Doom. Doomed because it was never ending. The refactor was too big and, because it was done in a branch away from the main code base, the refactoring guys never caught up with the main development team. So I canned the doomed refactoring initiative and we did it a different way. One that worked.
Continue reading