Archive for October, 2009

Is Semantic Web the Web 3.0? (I)

Thursday, October 29th, 2009

semantic web

People have been talking about web semantic and web 3.0 and we need to understand that they are two very different thinks. The term of the semantic web is coined by Tim Berners-Lee and there is no full consensus about what Web 3.0 means.

We can say that Web 3.0 is defined as the creation of high-quality content and services produced by gifted individuals using Web 2.0 technology as an enabling platform. At its core, the semantic web comprises a set of design principles, collaborative working groups, and a variety of enabling technologies.

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Co-evolution – Brooks did it again

Wednesday, October 21st, 2009

In a previous post I commented about Fred Brooks’ great conference when he received the Turing Award. He named it “The Design of Design”. In that conference he spends a lot of time discussing life cycle models and explaining why the Waterfall model is wrong (“dead wrong” as he calls it). And he also presented what he thought was a better model: the co-evolutionary model, attributing it to Maher and Cross. In this model, from a Problem P1 you get a Solution S1. And from P1 and S1 you get a new problem, P2. And from P2 and S1 you get a new Solution, S2. This simple concept explains that the problem and the solution evolve in parallel. And it’s one of the good things that Agile Methods have adopted. If you use agile methods, your lifecycle model is not only iterative and incremental. It’s also co-evolutionary. Let me explain this better.

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