I didn't mean to make it seem like shipdriving is the only part of the SWO qualification, but that's the most emphasized part of it. A buddy of mine's SWO board was "take us from Norfolk to the Persian Gulf...go."
I guess this could be true depending on the CO, however, that was not the case on my SWO board or the ones I have sat on. Here is my experience with my board, the ones I have sat on, and the ones other SWO's I know have been on.
OOD board is "ship driving" however there is more to it than just knowing how to drive a ship. Typically you get your CICWO qual and some type of engineering qual before you get your OOD. You have to know how everything "works together" on the ship to be a successful OOD (and on the OOD board). On CRUDES ships, typically the OOD has the authority of the CO. Obviously the CO is still the CO, but he cannot be on the bridge 24/7 making all the decisions. I have seen the CO give OOD letters to people yet never let them stand the watch (ie he doesn't trust them but doesn't want them to get kicked out of the Navy or not meet a milestone such as the aviators who have to get them at some point). To receive your OOD letter and actually stand OOD underway are often two different beasts entirely.
SWO boards cover OOD but also encompass much, much more. You have to know your current ship in extreme DETAIL. You have to know every class of ship, submarine, and aircraft the Navy has, what type of radars, propulsion systems, and the weapons systems they have and how/what they can be used for. You have to know the differences in ships, subs, and ac and why some are more advantages in some situations than others (ie would you rather have a CG or DG as an air defense commander and why, what is the difference between DDG flight I, flight II, and flight IIA, etc). You also get asked questions about CSG's, ESG's, air ops, amphibious ops, etc. I had to "draw" different types of operations and explain what everything means (what is a stovepipe, what are the flight patters of aircraft when you are doing x type of ops, what is a chip light, what does a LHD carry, what about and LSD, for this amphibious assault, why did you place these ships there, if you are going through the SOH, what order will you put the ships in and why, etc). You also get asked supply questions, general admin, and on and on. Pretty much anything is game.
SWO boards vary from CO to CO, but typically, what I have experienced, is that you have to have a big hodge podge of knowledge that is far beyond OOD.