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Keeping software releasable
A true software engineer wants to be able to release at any time with any application. An unexpected problem can require a hotfix, so you want to be ready for it. When maintaining more then ten, twenty...
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Introducing dependency injection into existing systems
A while ago I was faced with an interesting challenge: I was busy introducing dependency injection into an existing system. Almost every method call inside this system was a static call, so every class...
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Creating the hnDependencyInjectionPlugin
On Thursday 28th of August the hnDependencyInjectionPlugin was released on GitHub and packagist. Unfortunately I’ve been too busy to write this blog post about it since. When I got an e-mail yesterday...
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Vacation user story, useful for sprint planning
While researching for a future blog post, I came across this nice quote that I felt like sharing. When you start a sprint, it’s very likely that one or more team members will be on holidays for part of...
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Handling scope changes during a sprint
Every good product owner has a clear vision. He’s bursting with ideas of what to do next. The main tool he has for this is his product backlog: a prioritized list of all those ideas. At the start of...
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Developing for touch screens
Since a couple of weeks I have a tablet computer, the Surface Pro 2*. It’s really weird holding a piece of hardware in your hand that is just as fast as your main desktop, but more on that later. There...
View ArticleDefining Symfony 2 controllers in two ways
If you start with Symfony 2 using the quick tour, you might assume there is only one way of creating a controller: by extending Symfony\Bundle\FrameworkBundle\Controller\Controller. If you follow the...
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What kind of device to buy
It’s getting harder and harder to determine what kind of device to buy. A couple of years ago you would have a desktop and/or a laptop. Then netbooks were introduced. Ultrabooks. (Usable) tablets....
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Scrum deadlines, do they exist?
Interviewing a potential new colleague is always an interesting event. Sometimes you get unexpected answers to your questions. A couple of weeks ago I was interviewing a promising candidate. The...
View ArticleOn problem solving – which problem to solve?
Problem solving is a key aspect of software engineering. There are always multiple solutions. Each solution has strong- and weak points. When discussing which solution is the best, other details pop...
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