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Saturday, December 27, 2003 What is a programming model? My recent entry on programming models generated a couple of responses. Shane Claussen of IBM commented that the Service Network is the model, or perhaps the SoA is the programming model. Now, I fully agree that a service oriented architecture presents a programming model, but I am not sure if it should be considered the 'first-order' model. Per my request, Shane went on a took a couple of stabs on the definition of a 'programming model': 1. A PM is the tools and methods for building a service or an application AND 2. The PM is the visible components of an architecture that a programmer codes to/with. Hmmm. I like these definitions. I've scanned around the internet a bit... and haven't found much better. But Frank Martinez, CTO of a leading service fabric company (BlueTitan) posed a new question: What's more important (i.e. strategically relevant) to "you" (i.e. the practitioner)?: 1) Infrastructure-independent tooling 2) Tooling-independent infrastructure 3) Infrastructure-driven Tooling 4) Tooling-driven infrastructure He went on to state, "My personal answer (and preference) with respect to your question would be that your service network should enable (and encourage) a variety of service-oriented programming models...each of which could be business driven in it its own right. Additionally, your service network should feature a service-oriented extensibility model that shouldn't be constrained by any one given programming-model." I like this. The only thing I would add would be to encourage non-service oriented programming models in the network as well. Blasphemy? Perhaps, but I hope to make my case over the next several months. "What is my Service Oriented Extensibility Model?" posted by jeff | 9:11 AM Wednesday, December 24, 2003 Reading Material - Flight Home Here is something to read for the flight home... Edsger Dijkstra, way ahead of his time, "Hierarchical Ordering of Sequential Processes": 
posted by jeff |
12:56 PM
Tuesday, December 23, 2003 Service Programming Models Once again, I am on holiday break, visiting relatives - tucked away between some farms in Illinois. But luckily, StarBucks is only a mile away. Each break, I attempt to write something. One year I wrote the Java book, another I wrote Service Oriented. This year, I'm feeling as ambitious as ever, but the subject seems more complicated than those that I've pondered in the past: "Does the architecture of your service network define your programming model or does your programming model define your service network architecture? " Well, that is my starting point. Perhaps I'll throw out both notions and go somewhere completely different. posted by jeff | 2:48 PM |
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