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David Linthicum

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Top Stories by David Linthicum

Service-oriented architecture, or SOA, is the modern notion of connecting systems together at both the information and service levels. Indeed, enterprises are racing to enable their existing applications to externalize services, as well as build the appropriate integration infrastructure around it. However, extending your SOA to automate your business means you must work and play well with other organizations. Managing services, orchestration layers, and connections between companies is not as easy as one might imagine. Truth be told, while we've understood the value of SOA for some time now, the concept is still new to most enterprises. Not until the advent of Web services did we have a widely accepted standard and enabling technology that allows us to access all types of systems through a common services interface. In fact, we may be at a point in time where more ... (more)

Joining Enterprises With Web 2.0

The notion of building bridges to service providers and managing the interaction will become more commonplace in 2006 as we learn to accept that many services we leverage within an enterprise are services we may not host. The technology exists today. We need to define and refine our approaches now, including architectures, enabling technology, and use of standards. Most enterprises are way behind. We are moving toward a day when most of our enterprise applications may be delivered as services, and thus provide a more economical way to approach information technology management w... (more)

Exclusive Feature: Web 2.0 and Brokered Web Services

Web services were created around the notion that it’s easier to discover and leverage somebody else’s service, rather than write your own from scratch.  Also, it's much easier to create applications made up of many services, allowing change to occur at a pace faster than anything we’ve seen in the industry thus far.     The idea of Web services was to create a standard interface, programming model, description language, and a directory which would allow this to happen in and between very different systems. Indeed, today you can leverage services across the Int... (more)

How Much Will Your SOA Cost?

I'm consulting now...at the project and strategy levels...and finding that a lot of real work needs to be done to get SOAs up and running. For most organizations, the first step of their SOA project is to figure out how much this SOA will cost. So you can budget appropriately and get the funding. It's a good first step, but most organizations that want to build an SOA don't have a clue about how to approach the cost estimate. In many cases, they grossly underestimate the cost of their SOA, hoping their bosses and accountants won't notice later. In other words, go in low to get the... (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)