We finished last post with this funny situation: the abstraction that represents Facebook depends on our Domain Model.
It was a bit obvious that what we needed was not only system abstractions for Facebook, Twitter and the like but Bounded Contexts. We need to acknowledge the fact that these domains are not part of our model, […]
Read the first post here.
In the previous post we were facing the problem demonstrated by the diagram below.
Our FacebookMessageParser needs an instance of AllSocialNetworks so that it can create valid Users coming from Facebook. The only implementation we have for the AllSocialNetworks interface is UserRepository, and this implementation needs a FacebookMessageParser. That’s a circular dependency, […]
I’ve been extremely busy with project after project in the past few months, leaving me no time to do any research and/or play around interesting things. Even though I prefer to write about what is really interesting me at a given moment, I think that writing about some smaller/simpler problems and solutions would be better […]
I just finished reading Peter Seibel’s new book, Coders at Work.
I was a bit skeptical at first. I only picked the book because of the big names on the cover and because Peter Siebel’s Practical Common Lisp is one of my favourite books on learn-a-new-programming-language. I thought that a book filled only with interviews with […]
Wired has a very interesting piece on how the Duke Nukem Forever project failed. It’s not only relevant because DNF is part of the nerd culture but also because it is a very interesting tale about a company that could not achieve a reasonable Definition of Done (DoD).
In software development we often talk about Done […]
As I said here before I was in Brazil some weeks ago to present at a conference. I had a really great time over there with some amazing people and would like to thank Caelum for their hard work in creating such a great conference. I’m making the slide deck and notes available in my […]
As I said here earlied this year, next month I will be presenting in a conference called Caelum Day. This will be held in Rio de Janeiro, my home town, and I’m really excited to be there.
My presentation will be a keynote on the role of a Tech Lead and what I wish I knew […]
Regardless of what kind of team you have, it is a given that if you keep the wrong focus you are going to be in some kind of trouble. It is very important for a team to have a clear understanding of the project’s goals and constraints. That sounds like PM-speak but it’s not only […]
Nick showed me this today. My favourite part:
At a workshop once, Pete McBreen said “The Agile methods are methods created by people who like to program.” While that’s not entirely true, we bet it’s more true of that particular bunch of people than of any previous gaggle of methodologists. And their oddity went even further: […]
Agile Australia 2009 is close and the deadline for talk proposals ends next week. I’ve submitted one talk proposal:
Where do Acceptance Tests go to die?
Often the first thing a mature agile developer does when picking up a new card from the story wall is to create an automated test to validate its acceptance criteria. After […]
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