In the report, released Thursday, the market researcher said that Web services are proving their worth as corporations adopt the concept and plug disparate systems together, but also that the changeover still has years to go to reach its high-water mark.
IDC's report echoes what chief information officers have been saying for months. They are hedging their bets amid multiple standards and looking for more agreement on key issues such as security, the underpinning of Web services.
Microsoft, Sun and numerous other companies are pitching their notions of Web services as a way to convince customers to buy from a single technology provider.
But tight IT budgets mean that Web services are being used merely as integration tools, said IDC, noting "most of the Web services vision is just pure speculation".
IDC argues that delivering software as a service will require a lot of components and applications that don't yet exist. In addition, "the sharing of components and data required by the Web services vision will raise a number of difficult business, legal, and contractual issues," said IDC.
For Web services to work as imagined, IDC said, technology hurdles must be the first challenges overcome, but businesses also will have to change the way they view software and intellectual property rights. Proponents of the Web services vision also face work in the areas of security, standards and privacy.
