glass,grey,white ,black boxes

[manivannanrm]

can anybody explain the terms and when it will be used
glass box
grey box
black box.
white box
tnx in advance

 

[beta0]

Black-box verification involves verification of a module through its specifications alone, don't care
by which mean the specifications(functions) are implementation;
While the white(glass) box verification involves verification a module's internal implementation structure exhaustively;
for the grey box verification , it's the mix of black box and white box.