The Insider's Guide to Business and IT Agility
By Tony Baer, Senior Analyst, Ovum , 03/28/2006
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Once upon a time, maintaining service levels was a simple yet difficult matter. At least you knew who was responsible for tuning databases, monitoring infrastructure, and safeguarding access control. The hard part of course was getting everything working as promised.
Service-related issues have been traditionally been dealt with piecemeal, at the perimeter, data center, and inside application and database silos. Even after web applications exposed databases to the outside world, the action that mattered was confined (1) to the application inside the firewall, as the domain of security specialists or DBAs, or (2) out there in the cloud, where it was the service provider's problem.
You had, in effect, a barrier between the circulatory and nervous systems where interaction, and responsibility for it, was carefully proscribed.
Life isn't as simple anymore. With services eroding the silos demarcating internal applications from one another, not to mention the outside world, it's growing difficult to delineate where the system admin's responsibility leaves off and the software developer or process owner kicks in. In a Services-Oriented Architecture (SOA), key aspects of business logic are often intertwined with service level.
Consider an order fulfillment process. The customer's procurement system triggers a series of events, culminating in a requirement to receive confirmation from you, the supplier. In so doing, the customer system fires a request to your order processing system, which in turn triggers an orchestrated process involving inventory checks, approval workflows (where warranted), queries to logistics providers, followed by final acknowledgment. When you guarantee a platinum-level partner or customer priority service, you are implicitly promising that your infrastructure will deliver at a specified performance level.
In such a scenario, who's responsible for ensuring that the request is genuine, comes from an approved customer or partner, and requires response within a given timeframe? We'll understand if you're drawing a blank.
When silos of functionality break down, so does division of labor. System admins, charged with infrastructure health and perimeter protection, are over their head when considering the subtleties of contractual service guarantees. Likewise, the software and process folks are understandably edgy when it comes to banking on infrastructure issues outside their control.
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June 3, 2009
One of the most compelling trends in the enterprise business technology space over the past year has been the emergence of cloud computing. In ebizQ’s upcoming Qcamp virtual un-conference, leading industry experts and practitioners will explore the role of service-oriented architecture (SOA) and business process management (BPM) in supporting cloud-computing initiatives. Additionally, the new skills that developers and IT managers need for successful cloud development will be discussed.Register
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