They are also a useful tool in cost-cutting and out-sourcing for the networks and studios - as are the Aussies, Kiwis, and the Irish, for that matter, who are also much on screen at the moment.

This feature simplifies design-time implementation of cross-cutting concerns (discussed below), because actual content modification happens in a single place, with the tool taking care of the weaving.

Figure 3-2 illustrates the necessary relationship between cutting tool and the workpiece for chip formation in several common machining processes.