Posts by Year

2017

How to Draw Buffer Fever Charts

5 minute read

The Buffer Fever Chart is a tool that is used extensively in TameFlow and in Critical Chain Project Management (CCPM) used in the Theory of Constraints. For ...

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2016

Pattern Language Development

2 minute read

A pattern language is effectively constructed when the confidence of the collected patterns is assessed, and especially when interrelated patterns are cross-...

How Patterns become a Pattern Language

4 minute read

A pattern is not an invention; it is an uncovered solution, that has been observed to work for some time, in a variety of situations. Patterns are the result...

Design Patterns are a form of knowledge

less than 1 minute read

Patterns are prescientific. They are not derived from first principles as scientific theory, but from empirical observations. They can provide a phenomenolog...

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2015

Actionable Agile Metrics Review - Part 11

11 minute read

This is the final post about Dan Vacanti’s book Actionable Agile Metrics for Predictability, An Introduction. In the previous installments we have summarized...

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2014

Management of Extra Work

9 minute read

In earlier posts (Virtues of Minimum Marketable Releases and Kanban Improved via Theory of Constraints) we’ve seen the rationale for using Minimum Marketable...

Visual Portfolio Management

4 minute read

In an earlier post, Buffer Management and Risk Management in the Theory of Constraints, the ideas of buffer management was introduced. In particular, we saw ...

The TameFlow Time Terminology

less than 1 minute read

In the earlier post Replacing Cycle Time with Flow Time, I argued about using the term Flow Time instead of Cycle Time; and listed a number of different “tim...

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2013

Kanban Column WIP Limits: Good or Bad?

3 minute read

In the earlier posts I have listed a number of positives and negatives about the Kanban Method’s use of WIP limits on columns (work-states). Naturally the qu...

Mike Burrows on TameFlow

less than 1 minute read

+Mike Burrows posting on the kanbandev list had this to say commenting about TameFlow:

Replacing Cycle Time with Flow Time

3 minute read

After a number of email exchanges with +Andy Carmichael triggered by his original post The difference between Cycle Time and Lead Time… and why not to use Cy...

Cumulative Flow with Fever Chart

4 minute read

In Tame the Flow one of my primary concerns is about gaining better control of how work flows through a process. Naturally, it is desirable to have as stable...

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2012

Kanban Improved via Theory of Constraints

14 minute read

At the Lean Kanban Netherlands 2012 conference I gave a talk entitled Enhanced Risk Management in Kanban via the Theory of Constraints, proposing how one can...

Virtues of Minimum Marketable Releases

8 minute read

This is the fifth and last post in preparation for my presentation at the Lean Kanban Netherlands 2012 conference, about Enhanced Risk Management in Kanban v...

Risk Management in Kanban

12 minute read

This is the fourth post in preparation for my presentation at the Lean Kanban Netherlands 2012 conference, about Enhanced Risk Management in Kanban via the T...

Agility as an Expression of Empiricism

8 minute read

The field of software development is relatively young, but it has progressed very quickly. In just a few decades it has undergone maturing processes that hav...

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2011

Story Points Are NOT Function Points

6 minute read

In a LinkedIn discussion, which originally prompted the writing of the previous post (Function Points Are Fantasy Points), we find Simon Harris comparing Fun...

Function Points Are Fantasy Points

7 minute read

Function Points are a well known metric for software sizing. If you are unfamiliar with the concept, take a look at Wikipedia’s entry for Function Point. In ...

Friction Is Feedback

8 minute read

In our previous post about Software Craftsmanship Management, we highlighted the importance of the “resistance of the medium”, and suggested that increasing ...

Software Craftsmanship Management

5 minute read

That is an oxymoronic title, with the words “Craftsmanship” and “Management” side by side! Isn’t the essence of craftsmanship skilled individuality? While ma...

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