The DAZ Cyclorama is based on an old cinematic stage "trick" which if I understand correctly had an antecedent in stage theater. Cycloramas are defined by their curved background and the inclusion of various other props (or layers) to depict environments with depth. The curved backgrop allows for camera pans in animated sequences without the sort of obvious distortion that would give the game away as obviously if the backdrop were flat. 

This is the major difference between the DAZ Cyclorama and the DNA-style Infinity Cove or similar props. (I may be wrong, but IIRC Nerd introduced the first "infinity" sort of curved backdrop as a freebie many years ago.) The cool thing about the Infinity Cove sorts of props is that the wall-to-floor transition appears seamless, given the right sort of lighting. Same technique used commonly in professional studio photography. 

Because of the obvious advantages of rendering 3D outdoor environments in programs such as Vue into which Poser figures can be imported, that's what I do, so ironically, my main use for the DAZ Cyclorama is as a portrait studio backdrop. Indeed, DAZ' "paper" portrait backgrounds are to this day my favorite to use with the prop ... they make for really nice portraits.