Essentially, yes.  I started with the deflector housing and built outwards, following the major hull lines on the schematic.  Then I built the torpedo launcher, started on the hull behind the deflector, and then did the impulse engines.  I sort of build things in an order where I can see that I'll be able to build connecting areas between them.  That's what I'm doing with the dorsal saucer here.  I'm building it in one layer at a time, and before I get to the top, I'm going to build the bridge area.  Then I'll fill in the remaining hull between.