Beyond Integration

Vendors are also pushing into the development and governance aspects of service-oriented architecture. SOA links disparate applications, but plays another role as a software design philosophy focused on creating reusable services.

As services proliferate, organizations need tools to catalog them so developers can see what's available—and avoid reinventing the wheel. They may also require software for monitoring the performance of services in a production environment.

In response, integration vendors either acquire companies specializing in service-oriented architecture governance or develop their own wares. WebMethods took the former tack in 2006, acquiring Infravio for $38 million. That deal brought with it a registry for tracking services and governance software. Tibco followed the build approach in its launch last year of ActiveMatrix, which provides service development and governance products.

But while WebMethods and its peers expand their offerings, the companies aren't expected to forsake their integration roots. Mark Carlson, director of the independent WebMethods user group and president of Conneva, an Evergreen, Colo., consulting firm, says remembering the fundamentals is crucial. "Successful SOA," he says, "depends on and requires a successful integration layer."