On Constraints

As always it’s hard to boot up all processes in a new year. The blogging process apparently was down prioritized by my internal product owner. Well - he’ll have to stand back: I’m on it again.

For quite some time I have pondered constraints. They fascinate me quite a lot. Especially the ones that we take upon ourselves. In fact: I would go so far as to say that nothing good comes from having no constraints. Let’s go back a bit in my thoughts and see if I can clarify why.

In reality, this post is just a couple of examples of self-imposed constraints and what good they can have.

Toyota and TPS

First let’s stop, again, at Toyota. Why did they invent TPS (Toyota Production System)? What drove them there? It’s a quest that they’ve been on since the 50s and never will be done with.

Put...

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Have presentations - will travel

I have a couple of slow weeks before my next assignment starts for real, so as an early Christmas gift Aptitud and I thought that we could give away some presentations for free.

Please contact me on marcusoftnet at gmail or @marcusoftnet if you are interested in hearing any of the presentations below. No charge (saved any travel costs outside Stockholm… and the obligatory cup of strong, black coffee) and no strings attached.

UPDATED I have now booked my calendar to a suitable level (almost full). The response on this post was just overwhelming and I got 7 different gigs including a whole day at one company and a contact in Brasil (!). Might do this again. Longing to be bored again.

These are the presentations that I can give with an hours notice:

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Hello Aptitud!

So as I wrote this Friday I have now left Avega Group after 8 great years. Many people asked me what I was up to now and I held the “news” until today to handle one feeling at the time. I also have been keeping this to myself and as quiet as possible out of respect to Avega.

There’s nothing drastic going on (yet, he said mysteriously) in what I will be doing day-to-day; still consulting/contracting in lean/agile coaching, with a practical focus. I have a hunch that says that I will be doing more and more around ImpactMapping soon.

But where? Where?!, they demanded over and over again. Well here’s the thing that really excites me; I’m going to a small (9 people) consultancy firm called Aptitud. Great people whereof many I know since before. Having met the crew a couple of...

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Goodbye Avega!

Today is the last day I work for Avega Group. It’s the best place I ever worked at to date. I’ve been there for almost 8 years and see the company grow from 50 people to about 400 people.

During this time, I’ve learned a lot from a lot of amazing people. I’ve grown as a person and in my career to someone that I never thought that I could be. A lot of this has been due to the support Avega and all the people there have given me.

To say goodbye properly, I recorded a little (8 mins) movie with some memories from the Avega office that I will carry with me forever. It’s in Swedish so for all you English people (68% according to Google Analytics) I’m sorry about that, but this one goes out to my colleagues at Avega.

Avega - I love you!

I’ve...

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Autonomy in action - school kids

Today I rode the tram to work and was faced with the barbarian horde of school kids going the other way; to their school. After I had managed not be run down and falling of the tracks from them running towards the closing doors of the train, I got an image in my head.

School kids and teacher are excellent examples of command and control vs autonomy in action.

In this blog post I’ll contrast the two models of management and see if there’s any similarities with our normal working conditions.

Command and control

Imagine the whole school going to a boring outing, probably to a place the have been to many times before. To learn stuff that they are not interested in (by now you realize that this is TOTALLY made up - that would NEVER happen in real school. right :)).

For a school with, say, 500 pupils organising...

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Impact Mapping - Great Book, Great Tool

Impact Mapping

I’ve just got my copy of the Impact Mapping. It was long awaited for me and apparently for others too since it went out of stock in a couple of weeks. My own copy was ‘hijacked’ by a client that read it overnight and started to use Impact Mapping the day after.

In this post, I’ll write down some thoughts after reading the book from cover to cover. I wanted to do this on Amazon but sadly I cannot since they only accept reviews from people who bought the book directly from them. Well, this will have to do instead then. I’ll hint right now that this would be a 5-star review (to add to the 9 other 5-star reviews that are already on Amazon).

What is it?

Impact mapping is described to great effect at the official site; www.impactmapping.org. So here,...

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Unearned trust

Today I’ve experience a rare thing. I went into a restaurant in Stockholm. It was a new place to me I’ve never been there before, to my knowledge. The restaurant was crowded as it was lunch hours. One by one the queue in front of me disappeared and went out the door again. So I started to realize that something wasn’t right here. Food’s out? Food’s bad? Only veggies left? When I came up to counter to order the man behind the counter let me and then said:

“The card machine has not been acting up during the last hours. Let’s see how this goes…”

Sure enough - the card machine was broken. I couldn’t pay. So I put my card back into my pocket and turned around to go. Then he said it:

“You know what … It doesn’t matter. Take a seat and we’ll bring...

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TDD for Kids

I had the opportunity to do something exciting yesterday. I was invited by my good friend Tristessa to teach a class on programming for her 13-14-year-olds. She teaches at the International School of the Stockholm Region and had introduced them to programming just a couple of weeks before I came.

Since the first time I learned TDD I’ve always thought that it’s a bit like thinking like a child; challenging the code, come up with more examples, try to break/understand your code and just being curious. Also - when TDD works it feels much like doing a puzzle - the next piece just comes to you in a nice way, another kid-activity. So I thought I’d try to teach them TDD during an hour and a half. We did the Fizz Buzz kata together and during the class brushed on a number of interesting subjects. They also did...

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Code Freeze, Recompile, and Code Generation - Not So Scary with CD

Sure enough… There’s an abbreviation for Continuous Delivery. It’s CD. I think this means that it’s important :)

The last couple of days I’ve run into a lot of expressions, true-isms and problems that we take for granted that are turned a bit on their heads when looking into releasing often. And with often I mean real often - like all the time. No, really, I mean continuous delivering.

Yes, I know that it first feels a bit scary and unachievable, but in this blog post I’ll try to show you a couple of things that make that strive worthwhile. I think.

Continuous Delivery?

Continuous Delivery

So the short and sweet introduction is really this; push EVERY change to your code, configuration, and environment to production. Do that all the time.

To unwrap that it, of course, means that you need to have your code,...

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Specification by example and Model based testing

My current client, Spotify, is really on the forefront when it comes to good, solid engineering practices. There are inventors, leaders and all-around great people wherever you look. So this gig has rendered me a lot of learnings, even in the areas that I don’t touch much (being hired as an agile coach that reads coding people…).

So the first week or so heard the term Model based testing for the first time in my life. Investigating further I realized that it had strong similarities, technology-wise, with Specification by example. And there’s some fundamental differences in the thinking and reason behind each approach too.

In this post, I’ll take a brief look to clear out the differences and similarities. I think that you can have great use for both approaches but you should probably know why or you’ll find yourself fighting the tools and process for a...

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