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But Google is just a manifestation of a larger trend in the industry - one in which the pre-eminence of the " site " is being challenged by " services " - where content providers may ultimately lose control of their user interface and branding . One of the ironies of the current situation is that just at the moment when we begin to extract more value from the historic investment in structured data in our catalogues , and these initiatives are examples of this trend , we are also looking at blending the catalogue more with other data and environments where it may be difficult to build services on top of that structured data . Instead , RobustRoots just attempts to re-import a terminated root object through NamesBootService and , if this is successful , RobustRoots attempts to insert the new proxy object under the given path name . When designing such systems we should ensure that they do not allow fundamentally bad properties , too slow convergence , oscillation , chaotic behaviour , stuck modes ; just as for any control system .