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David Linthicum

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Top Stories by David Linthicum

Want to leverage your enterprise's Web services? Chances are you'll be enabling or exposing existing application services and not building new. This should come as no surprise to anyone. However, while we've been focusing on the development of new services, how to do it, and what tools to use, most of the work that I see coming is learning how to translate and expose legacy services. So, my prediction is that one of the best paid jobs in 2005 will be engineers specializing in Web services enablement of legacy systems. I'll call them service archaeologists. Indeed, most corporate data and business processing resides on mainframe computers; any attempt to move to an SOA has to include legacy/mainframe integration. Mainframes are not the mainframes of yesteryear. The good news is that most mainframes today are designed to work and play well with other systems within y... (more)

SOA and Services as a Service

While the number of SaaS providers grows, as well as enterprise acceptance, we are really not breaking new ground. In essence, today's SaaS providers offer visual systems, meaning they communicate with a human being. They also provide a single visual interface, and the users have to take both the data and behavior as provided. We could call this an enterprise application that's not much more than a Web site, or an old-Web technology. Moving forward, we now have the opportunity to leverage discrete services, as needed, for use in both SaaS-delivered enterprise applications and SOA.... (more)

Remember ebXML?

While there are many standards that look like ebXML, ebXML is the first horizontal standard designed to address the exchange of information and adherence to inter-enterprise processes. However, in attempting to reach this lofty goal, ebXML is also a complex standard and takes some understanding before we can comprehend its value to the world of application integration and electronic business. So, why do we need the ebXML standard? It's really a matter of leveraging the Internet to automate how we do business in real time, leveraging common processes and common information format... (more)

Understanding SOA Architectures and Models - Part 1

A few people who have been reading my blog and this column, and listening to my podcast, as well as reading other SOA blogs and articles, have become a bit confused pertaining to the notions of: SOA Reference Model(s) SOA Reference Architecture(s) And how all of this works and plays with Enterprise Architecture I spent a few hours of my weekend attempting to research and define these concepts a bit better, in essence, taking everyone's opinions and normalizing them so they make better sense. What I found were many of the same notions, defined differently, but all attempting to s... (more)

Understanding SOA Architectures and Models

This is the larger issue, as I see it, and is very visible to me working both in the world of SOA and the world of enterprise architecture. So, why are they different worlds? Moreover, what is enterprise architecture, and how does it fit with reference models and reference architectures, as discussed here before? From Wikipedia: "Enterprise architecture is the practice of applying a comprehensive and rigorous method for describing a current and/or future structure and behavior for an organization's processes, information systems, personnel and organizational sub-units, so that ... (more)