The wrong duplication (reprise)
I came across this old post again today, and I still like what it has to say: The Wrong Duplication. Maybe I should add a code example…?
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development, by example
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Global Day of Coderetreat
November 16, 2011
In case you hadn’t noticed, XP-Manchester is running a Coderetreat as part of the Global Day of Coderetreat on December 3rd 2011. You can find out everything you need to know by visiting our page on Eventbrite, where you can find FAQs, links to further information, and the all-important sign-me-up button. Oh, and it’s FREE… [Read more…]
Ubuntu, mysql and rails
November 10, 2011
I just upgraded my work laptop to Ubuntu Natty Narwhal, and then I found all my rails projects broken. Whenever I tried to run up a rails server, I got this: $ rails server => Booting WEBrick => Rails 3.0.3 application starting in development on http://0.0.0.0:3000 => Call with -d to detach Exiting /path/to/gems/activerecord-3.0.3/lib/active_record/connection_adapters/mysql_adapter.rb:30: in… [Read more…]
Don’t inherit code
September 28, 2011
I learned a long time ago that there are essentially three different kinds of relationship between two classes. They are, in order of increasing tightness: Uses, in which I care only about your public API; Creates, in which I also need to know your class; Inherits/extends, in which I can also see some of your… [Read more…]
Faster Rails controller specs
August 7, 2011
One of the Rails apps I work on has this: $ rspec spec #... Finished in 61.82 seconds 475 examples, 0 failures 61 seconds! (And on top of that I have to wait another 15 seconds for Rails load; that’s a whole other story, and I hope to come back to that in a future… [Read more…]
When software smells bad
July 29, 2011
It turns out I co-wrote the feature article in this month’s Better Software magazine!
Wabi-Sabi
July 10, 2011
I just posted this review of Wabi-Sabi: For Artists, Designers, Poets and Philosophers by Leonard Koren: This is a wonderful little book about the Japanese art style called Wabi-sabi. The book is short, and many of the pages consist solely of full-page photographs illustrating the ideas. So it’s a quick read, but worth taking the… [Read more…]
Hexagonal architecture: reprise
June 28, 2011
While browsing around other folks’ blogs today I came across a link to a post I wrote back in March 2005. Six years on I think it still stands up, and so I commend it to you, dear reader: The Middle Hexagon Should be Independent of the Adapters.
RIP Eliyahu M. Goldratt
June 12, 2011
“I smile and start to count on my fingers: One, people are good. Two, every conflict can be removed. Three, every situation, no matter how complex it initially looks, is exceedingly simple. Four, every situation can be substantially improved; even the sky is not the limit. Five, every person can reach a full life. Six,… [Read more…]
Code must be workable
June 8, 2011
“ I do not view a project as the sum of its code. Rather, it is the view of that code through the tooling that it is designed to take advantage of. By targeting my code towards my tools, I can get a lot of value with a lot less code.“ – Arlo Belshee, setting up… [Read more…]
I'm Kevin Rutherford, from Macclesfield in the UK. I'm an independent agile software coach and mentor, specialising in test-driven development, agile, lean and the theory of constraints.
December 23, 2011
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