Funny - I thought it was the role of Registries to keep track of things.

His ROA solution, however, glosses over the problem of finding services with the broad assumption that they are out there on the Web and so all they need to do is encapsulate a description. Presumably Google Solves All and uses that description to make the service findable.

That simplistic, singular approach seems to ignore the possibility that there might be multiple reasons to use a given service and therefore multiple ways to find it.

Once we start thinking about composing real business solutions, the (legal) need for accountability complicates a blithe approach to service selection and services are only likely to be used because they are available through a corporate registry.