The discussion above already provides us with some insight into the answer to
this question. The representations and the actors in a development community can
both be seen as harbouring certain knowledge topics. As such, both representations
and actors are (potential) knowledge carriers. Knowledge topics refer to some
subdomain of the system being developed and/or its development process. The
knowledge topics can therefore be classified further in terms of their focus, scope,
etc., as discussed in Sect. 4.2.2.