Answer Posted / veeraraju

Top down approach is nothing but a stubs or Dummy module....Stubs means we assume something is there but it is not vissible.................

Example:-

Yahoo(Highest level module)

Mail:- News:-
Inbox Entertainment
sent mail National
Junk International
Draft Business

In this example yahoo is having different sub modules like mail and news..so yahoo is the highest module compare to mail and news.....
not only a yahoo is highest module..... mail is also highest module compare to sub modules in mail........like mail is highest module compare to draft
so mail is lowest module as well as highest module
it depends on the comparison.......


Note:- this is the first time i am posting.......plz correct it if any modifications is here........

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