Vocabulary

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

*The Government could be considered as an hierarchy.

Key Frame- A drawing that defines the starting and ending points of any smooth transition. 
*There should be a key frame at the end of an graphic transaction.

Playblast- A low-resolution, crude-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.
*In maya you can render a playbast to your creations.

Parenting (computer graphics)- When an object has and affect on another object considered the child, when the parent object moves.

* Parenting in computer graphics could be the same as parenting int he real world. Wherever the parent goes , the child is to follow.