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Monthly Archives: August 2013
Debunking the 10,000-Hours-of-Practice Theory
Now that I brought up the subject of music with my previous post, I want to express my skepticism of the popular theory there is a universal “magic” number of 10,000 hours of practice that one has to complete in … Continue reading
Something I Learned by Studying Misic as a Kid
This was the topic of the second of my three super-lightning talks that I fit into two minutes at the 2013 Agile Coach Camp Canada. This post continues the series of reports from the camp, started here and continued here, … Continue reading
Posted in conferences
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The Seven (or More) Meanings of Kanban
A number of articles appeared recently that, while making some their point, tried enumerate different meanings of the word “kanban.” I would like to show my own set of definitions that I found useful to keep in my head when … Continue reading
Posted in facilitation
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Shew-Ha-Ri: a Three-Level Model for Dealing with Variation
Continuing the statistical theme of the last two posts, but trying to close it at the same time. I observe three different levels of dealing with the same problem: look at a data set of some metric and tell whether … Continue reading
On the Practically Useful Properties of the Weibull Distribution
In my previous post, I referred to the insight (created by experts who have analyzed lots of real-world software and IT project data) that lead times in such projects often have the Weibull distribution. I also explained a bit what … Continue reading
Posted in hands-on
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How to Match to Weibull Distribution in Excel
UPDATE: The contents of this post are still valid, but there is a new, complementary post: How to Match to Weibull Distribution without Excel. Warning: this is a very technical, hands-on post. It turns out Weibull distribution is quite common … Continue reading
Posted in hands-on
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