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David Linthicum

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Top Stories by David Linthicum

I’m just finishing up a book on cloud computing and SOA, and found the process of writing the book to be a great catalyst for thinking through the issues surrounding cloud computing, as well as assisting my clients with their cloud computing strategies. As I found, there are a few issues to consider with cloud computing: First, cloud computing is not the savior of IT. It’s nothing but a way to deploy your enterprise architecture in such as way that has the potential to be more productive and cost effective. In essence, it’s a tool, not a way of life. It’s not magic, it’s not even new, but if approached correctly, could be a path toward efficiency. Second, cloud computing and SOA are different concepts, but they are indeed related. SOA is a pattern of architecture, or an approach, where cloud computing is an instance of architecture, or architectural options. They are... (more)

Cloud Computing & SOA: Getting the Links Straight Between Them

Want to know what gets my blood pressure up? It's when there's both a huge shift in thinking around how we should do computing, namely cloud computing, and at the same time, there's a bunch of information out there that causes confusion. As cloud computing hype spikes to a frenzy, so does the number of less-than-intelligent things that I hear about it and its relationship to SOA. We've got a herd mentality in IT. We're always chasing the next paradigm shift, which seems to come along every five years, claiming that whatever the last paradigm shift was had "failed" and that's why... (more)

SOA World Expo: Virtualization-in-a-Box?

Earlier this month I attended the IBM Impact conference in Las Vegas.  The core theme of Impact was "Smart SOA" and how cloud computing comes together in the enterprise, with the emphasis on private clouds.  The core notion of private clouds for IBM is really about extending their experience in virtualization, which is vast, into the more modern world of cloud computing.  They hope to sell some hardware and software in the process.  IBM considers private clouds strategic to its platforms.  The movement to private clouds plays right into its hands.  Recently they are announced a ... (more)

Where Web Services Meet Mobile Devices

Let's face it, we're going mobile. You only need to consider how you communicate these days to understand that. I, for one, find that my Blackberry is becoming my e-mail terminal of choice, as well as my best source of information via the WAP-enabled Web browser built-in. And oh yes, it's a phone. Others are finding that their mobile phones are their single point of contact, both voice and data, and this trend will only continue as we learn to cut the wires and as wireless networks become more pervasive and much faster. The use of mobile devices as a personal information deliver... (more)

Designing SOA Web Services Services for Performance

As we discussed last month, performance is often an afterthought when building new systems, including SOAs. We're finding that services and SOAs fall victim to this oversight as well. Indeed, there is a right way and a wrong way to design a service and an SOA. Also, there are things that are out of your control that you must consider during your design. This month let's continue our discussion with some important performance concepts, including how to create a performance model, as well as more service and SOA design tips when considering performance. Creation of a Performance Mo... (more)