Category Archives for Estimation

Uncertainty of benefits versus costs

I think a lot about estimation. I used to do a lot of estimation with my teams. When the organisation I’m currently working for started doing agile, we did loads of estimation. We were constantly being asked for estimates. High level estimates, low level estimates, feature level estimates, story level estimates. We would spend a […]

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Why aren’t story points a unit of time?

Continuing on the theme of estimation, a common question that comes up is “so are story points a unit of time?”, usually followed a few seconds later by “Why not?”. People seem to want the abstract “story points” to become hours, days, or similar. The consensus in the Agile community, which I agree with (though […]

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Why not use velocity to compare teams?

So if you read my last post, you might be wondering, why not use velocity to compare teams? There are a number of problems with using velocity that way. Each team does their estimations in their own way Each team estimates the relative points for a set of stories against other stories they have already […]

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