Most users look for only 3 m.

• One positive - Yes , OK , Add , Retry , Wait ..etc.

• One negative - No , Abort , Quit , Exit

and the third one is:

• "Escape from this Message Box" - Cancel

So, using Yes, NO, and Cancel makes three different types of thoughts.

That means, their usage depends on the case.

Most users look for these 3 options.

• One positive - Yes , OK , Add , Retry , Wait ..etc.

• One negative - No , Abort , Quit , Exit

and the third one is:

• "Escape from this Message Box" - Cancel

So, using Yes, NO, and Cancel makes three different types of thoughts.

That means, their usage depends on the case.