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William Martinez Pomares

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Top Stories by William Martinez Pomares

In a recent discussion at InfoQ about the news of the upcoming SOA Manifesto, I had discussion with great people, including Jean-Jacques Dubray and Steve Ross-Talbot both renowned guys in the SOA world. We all talk the same, maybe at different levels or on different realms. Still, I promised Steve to put my two cents about SOA. Well, here I have a couple of ideas about it, too high level, but trying to clarify at least the three words that conform the acronym. Well, here they go. Many people talk about SOA and Services, but I’ve found in presentations, articles, case studies, working with tools vendors and looking at real implementations, that not everyone understands the concepts quite right. So, I have a couple of posts (here, and here) and a short video in the Architecture Journal (SOA Myths), explaining the types of perceptions people have about the concepts, an... (more)

SOA Discussion Remembrances

Back in the year 2007, end of May, there was a post on The Server Side by Albert Mavashev that highlighted the growing complexity of SOA, why architects should take that into account, and stating that a balanced, incremental adoption of SOA was one good idea. Problem was his starting paragraph, where he says: SOA (Service-Oriented Architecture) seems to be the buzzword everywhere!!! SOA will solve all the problems, everyone wants SOA -- or so I hear. Anyway, I remember similar claims when CORBA was coming to town. It was supposed to change the way IT does business. To me SOA is ... (more)

Why Web Services Failed at SOA (and Why REST May Fail Too!)

First, let's review what is the concept behind services, with particular mention of the web services themselves. A service is a business functionality exposed by a simple interface. Note that it is not an object, nor a method, nor a module, not a procedure. It is pure business functionality. Services are consumed, not called, nor executed nor invoked. We define the service consumption as the interaction between agents, a client and a provider, which will communicate using a messaging system, where the data unit is a document. Consumption may be local or remote (meaning a service ma... (more)

WADL, REST and WSDL

Paul kindly pointed to a blog entry about WADL use in REST, (WADL definition is found here). The Blog entry was interesting to read. I want to quickly explain that WADL is meant to describe the possible interactions with a Web Application. Thus, it has methods, but those are HTTP commads, and it also describes the query variables (like the fields in a form) that the method needs to send to the web application. Finally, it describes the expected response. Now, in the blog I see some misconceptions. First, it relates SOAP and WSDL to XML-RPC. That may seem true due to actual use of... (more)

Longer Abstract for TSSJS presentations

DSL and Testing: using JSR in the Polyglot Architecture. Long ago, we started working with a Client, PushToTest, that has a tool for testing. The main idea of this tool was the ability to repurpose unit tests into functional, load and Monitor tests. It has also a proxy to record all transactions against a web page, so the transactions could be replayed later. At some stage, the intermediate language chosen to script tests and record the transactions was Jython. Over the years, it was learned that not all people knew Jython, nor Python nor Java. So, other scripts were added, adding ... (more)