wtf is a hierarchy chart??

[dawiz66]

My professor wants us to make a hierarchy chart for one of the programs we r doing to show the relationship between functions.. what is it.. i know what a structure chart is but not this thanks

[Prelude]

A hierarchy chart shows the overall program’s structure, describes what each part, or module, of the program does, and shows how each module relates to other modules in the program.

-Prelude