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simbo1905’s ramblings about computers

Month: February, 2017

Cassandra For Shared Media Libraries

A good friend of mine is working on a project which hosts media libraries in his cloud service. At the end of 2015, I integrated Cassandra into a big financial services platform. Cassandra is a great fit for my friend’s service. In this post, I will outline an appropriate Cassandra data model and along the way outline some of the killer features of Cassandra. Read the rest of this entry »

The End Of Agile Estimation: Lies, Damn Lies, And Burndown Charts

In my last couple of posts, I gave an example of a successful agile team that didn’t do estimates, then made the case that estimation is aligned to “wagile” ways of working. This post is going to make the case that the approach is fundamentally flawed when viewed as a measurement activity.

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The End Of Agile Estimation: Predictability Isn’t A “Good Thing™”

In the last post I gave an overview of large scale build which used Kanban and that shunned estimates. In this post I will get into why Agile estimation is not aligned to agile values. It is simply a hangover from waterfall days and is a “wagile” concept.  Read the rest of this entry »

The End Of Agile Estimation: Flying Without Estimates

In the past twelve months I have had the privilege of working across more than a half-dozen teams building digital services. It was interesting that only one of them was attempting to do estimates and it wasn’t clear to anyone, let alone them, exactly why they were attempting it. In this post I will sketch out how a successful large scale team abandoned estimations entirely.  Read the rest of this entry »