with two common meanings:
Digital Orthophoto Quandrangle: This is a photo taken from the air, but which has been digitally manipulated to erase the distortion of shapes resulting from the point of view. The end result is an image that serves as a map, yet contains photographic imaging. May also be called a COQ if compressed into JPEG format.
Depending On Qualifications: Abbreviation found most often in employment ads, usually referring to pay rate.