Some of the starry eyed predictions for Web Services may prove too optimistic, or we may all be retired before they are widely prevalent, but there is real value in Web Services for the enterprise today, even if the only use is in house. Web Services provide a low cost and robust solution to EAI requirements, by enabling universal browser access, user interface re-engineering for increased productivity, and most importantly by providing the infrastructure to easily and quickly build composite applications. These composite applications can tie together separate mainframe applications, mainframe and client/server applications, or even internal applications with external Web Services. Easy, inexpensive, and robust solutions are available now to solve today's enterprise problems. Our recommendation is to proceed cautiously, as in all new development, and to carefully consider evolutionary versus revolutionary approaches so that ROI is positive and project risks are fully controlled.

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