Hierarchy:

-A system or organization in which people or groups are ranked one above the other according to status or authority.

-An arrangement or classification of things according to relative importance or inclusiveness.

Parenting (computer graphics)

Key frame:

They are called "frames" because their position in time is measured inframes on a strip of film. A sequence of key frames defines which movement the spectator will see, whereas the position of the key frames on the film, video or animation defines the timing of the movement.

Playblast:

A low-resolution crude render of computer-generated imagery used in CGI production as a check for character and prop positioning and lighting placement. Curved surfaces are rendered as surfaces with low face count, i.e. faceted