Concise code: brevity and clarity

Posted on 20. Jun, 2011 by Guilherme Silveira.

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A few years ago, with the wave of new (and old) languages growing its acceptance rate in the market, some people appeared defending code with the intention of being “concise”. Being concise means express a lot, with a few words; being clare and sucint; brief, but with all the required information; having characteristics of brevity [...]

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Effectiveness, knowledge and the progress curve

Posted on 02. Mar, 2011 by Guilherme Silveira and mauricioaniche.

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In a recent post, Michael Feathers talked about the skill level in the software development industry. Knowledge requires practice and takes time to settle, so it is natural to see that, in a currently fast paced changing industry like ours, some individuals are amazingly away out of the mean quality. Feather suggests a graph showing [...]

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Evolving software and improving algorithms

Posted on 13. Jan, 2011 by Guilherme Silveira.

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Recently Bob Martin has posted a series of transformations that aid developers whilst implementing an algorithm. Following steps and in order to improve our code and achieve something is key to refactoring, TDD and other tools are out there that gives up that kind of feedback. Bob posts a few questions that are important for [...]

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Simple changes might not lead to simple solutions

Posted on 10. Jan, 2011 by mauricioaniche.

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The process of delivering a new feature is consisted in implementing or fixing something that the current state is not capable of. Given the set of all problems that your software solves at this moment, there are many different ways to solve them. All of those possible solutions are valid and would end up in [...]

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Designing code: fluent interfaces and your domain

Posted on 03. Jan, 2011 by Guilherme Silveira.

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Together with coworkers, we have been talking about the influence of Test First in our design: it is not only about testing, or testing all the time. The discussion is on how developers should learn from understanding feedback from every type of tests (unit, integration and so on) and act accordingly. We have begun a [...]

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Practice: Favor finishing a story over starting a new one

Posted on 11. Jul, 2010 by Guilherme Silveira.

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Symptom: Right before your development cycle finishes, which can be an iteration, a sprint or anything similar, all stories are marked as finished, giving a feeling of complete success. During the review meeting, when the Product Owner verifies what has been done, the number of approvals is extremely low: most of the stories are rejected. [...]

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When I am unable to TDD…

Posted on 24. Aug, 2009 by guilhermesilveira.

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It has been a while since we started using unit tests (and other types of tests) in our projects. But test driven design has always been something that once in a while I feel unskilled enough to do from start!? Many people (including myself), for many reasons, that TDD is the way to go… but [...]

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To break or not to break? Java 7?

Posted on 17. Aug, 2009 by guilhermesilveira.

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There is a short slide show to illustrate some thoughts. There will be better ones in the near future. When is the right timing to break compatibility of a public api regarding its previous versions? Well, in the open source communites there is a common sense that a library is allowed to cause some migration [...]

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small project + full time despair?

Posted on 16. Aug, 2009 by guilhermesilveira.

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as a friend pointed out: “if you use a full time scrum master (in a small team), you do not need a scrum master, you need a gun”… if you need too much to sort things out, someone should take control and change everything…

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Agile methods and Mathematics

Posted on 08. Jul, 2009 by guilhermesilveira.

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The Agile Brazil 2009 meeting gave me something really nice to think about (and play with).For those who still do not know, I have studied Applied Math at USP and switched to Computer Applied Math. During my earlier years at the university, I have had a mentor who had his specialization in dynamical systems and [...]

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