Organization structure

Yes, more or less. Functional really describes the shape of the organisation – divided into functional departments. Within each department there could be great discretion given to employees about how to do their jobs – that would not be bureaucratic. However that is rather rare and the functional structure usually has a strict hierarchy within each functional department, so becomes very bureaucratic.

As I said, functional and bureaucratic describe different things and are not mutually exclusive. A functional organisation could be very bureaucratic (ie lots of forms to fill in and close supervision). Government departments are typically like that. However, it is possible for a functional organisation (eg separate departments for accounting, sales, purchases etc, each department fulfilling a function) but within each department, bureaucracy could be low and people would be expected to largely manage themselves and would be given discretion to ensure work is carried out properly.