Wayne Allen's Weblog

My early metrics book, Controlling Software Projects: Management, Measurement, and Estimation (Prentice Hall/Yourdon Press, 1982), played a role in the way many budding software engineers quantified work and planned their projects. In my reflective mood, I’m wondering, was its advice correct at the time, is it still relevant, and do I still believe that metrics are a must for any successful software development effort? My answers are no, no, and no.

-- http://www2.computer.org/cms/Computer.org/ComputingNow/homepage/2009/0709/rW_SO_Viewpoints.pdf

If that doesn't rock you back on your heels, then you need to re-read that paragraph.

Next you need to go read the whole article (2 pages).

As someone who prefers the agile approach I have been pushing the value based approach over the control based one for nearly a decade now. But to see someone like Tom question publicly what he (and we) have been doing for the last 30 years makes me respect Tom even more, and give me hope that as an industry we are heading in the right direction.

Jack Milunksy of Brightspark and AgileBuddy was reacting to a Agile Project Management forum topic on metrics.

Jack was of the opinion that:

the more one spends time tracking metrics, the less time there is for development

While I have some sympathy for this point of view having worked for larger organizations in the past, I have come to realize that you do need some type of metric that is understandable to the rest of the organization. All the other departments in your organization have an overriding single number that describes how they are doing, why not software development?

As I mentioned in my No More Iterations post, throughput is my metric of choice. The cost of collecting this metric is so low that it doesn't matter.

Now I have been asked to provide all sorts of low level metrics in the past not knowing how they were going to be used. I was not inclined to cooperate in those cases since the time required to collect them was never going to be offset by any value coming back to my teams. And this is most likely what Jack is protesting.

I like being proactive and providing a metric I think is useful, rather than waiting for someone who doesn't really understand software development ask me to have my teams track actual effort against estimated effort in units of 0.1 hours (really I have been asked to provide this!).