Star Trek Online, and they all cover broad fields of potential abilities. That's part of the charm of the game. When Delta Rising launches, however, players will be able to specialize their characters a bit more with the introduction of specializations. Specialization trees allow characters of all disciplines to become a little more focused on a specific area of play, unlocking new traits and abilities for use in various scenarios.
Players can have one primary specialization and one secondary specialization active at any given time; while abilities can be bought for inactive specializations, they cannot be used until that specialization is made active. At launch, the game will have one primary tree (Intelligence) and two secondary trees (Pilot and Commando), all of which provide different functions and can allow a character to focus in on unique areas of play. Take a look at the full rundown for more details on how the new powers will work when the expansion goes live in mid-October.