What is one supposed to make of this? A process is a progressively continuing procedure that consists of a series of[sic] controlled activities systematically directed toward a particular result of end. A process is defined as performing activities of varying complexity.

And if you think I'm taking this out of context, it's even more confusing in context. Anyway, it's from the Business Process Management Initiative in the specification of the Business Process Modeling Language (BPML) they have created.

It may be that the thing they are trying to describe is not well enough understood at this point to be able to put together a useful definition. In this case I think the best thing to do is to fess up and define it by example until a greater clarity can be achieved.