In the Star Trek universe we do see usage of "attack wings" (as shown in many of DS9's episodes) and by Starfleet.
However are these attack wings actually housed on larger carriers or are they independent ships capable of warp?
Furthermore does anyone know of any cannon usage of carriers as a regular part of the military (I wouldn't personally count the usage of a shuttle or two as having attack ships) by the Federation or other factions such as the Klingons or Romulans (in the example of the Romulans the scimitar wouldn't count as it was only built once and not a regular vessel type -- as far as I know)
Also I know some games such as STO use carriers but I would prefer evidence from books or screen.