Update: Part II is here.
Most complex tasks are solved using abstractions. To create an abstraction one groups lower-level concepts, what I will call primitives in this text, and make them interact in a pre-defined way.
Abstractions are present at all levels in a system. Computers work based on electric signals. To reduce the Essential Complexity we […]
Weeks ago, some people in the Ubuntu community got a bit disappointed with the distribution’s core team:
> We are supposed to be a community, we all use Ubuntu and contribute
> to it, and we deserve some respect regarding these kind of decisions.
> We all make Ubuntu together, or is it a big lie?
We all make […]
In ThoughtWorks we get together at least once an year for a whole weekend to drink beer and do whatever people consider interesting. This year’s ThoughtWorks Australia Away Day (AKA Team Hug) was somewhere in Victoria and among other activities (and a bus crash) we had technical sessions.
I used one of those slots to do […]
Just posted slides for a presentation I gave this week for one of our clients.
Expressive Design (in 20 minutes)
View more presentations from Phillip Calçado.
It was a very nice session where we talked about the hard work that is introducing such ideas in a corporate environment as those are finally reaching mainstream.
Notice that in this presentation […]
I really like Amazon WebServices. I think they provide great and innovative features with an affordable price. I also like Engine Yard. Their plans are too expensive for most users but their commitment to a better open-source platform is remarkable. And I think they made a pretty interesting move in their new Solo offering.
Solo […]
We just started holding 20 minutes presentations during lunch time in the ThoughtWorks Sydney office. For the first session I gave a not-that-short talk on Lisp macros using Clojure. The slides are below.
Lisp Macros in 20 Minutes (Featuring Clojure)
View more presentations or upload your own. (tags: thoughtworks clojure)
It turns out that 20 minutes is too […]
Ajaxian.com published an article on Ojay, an interesting JavaScript library that rests on top of Yahoo!’s YUI. The library has a DSLish way of expressing form validation rules, like in these snippets from their website:
form(’signup’)
.requires(’username’).toHaveLength({minimum: 6})
.requires(’email’).toMatch(EMAIL_FORMAT, ‘must be a valid email address’)
.expects(’email_conf’).toConfirm(’email’)
.expects(’title’).toBeOneOf([’Mr’, ‘Mrs’, ‘Miss’])
.requires(’dob’, ‘Birth […]
I was very happy to see that Ruby 1.8.7 made a method named Binding#eval public.
This method is very useful when you need to mix two Domain-Specific Languages. In Ruby you often evaluate a block in a different context than where it was defined, using instance_eval and friends. The problems is that a block can […]
I’m attending JAOO in Sydney. Today’s most interesting presentation was by Johnny Chung Lee, a Internet Celebrity(tm) with some of the most viewed videos in youtube and a researcher in human-computer interaction.
Johnny gave a brilliant talk and stressed the fact that although we have better graphics nowadays we still suck at how to interact […]
I presented this example into ThoughtWorks Melbourne GeekNight last week. Slides here.
The more I get interested on expressiveness in software development the more I feel the pain of using when a simple concept is encrypted into lots of noise. The most recent occurrence of this sad experience was some weeks ago when once again I […]
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