Dear Ramesh,

I am very interesterd to learn the OTRS functionalities and desiging.

I suggest you install OTRS and play with it. Come back with specific questions.

Please some one help me in expline me OTRS functionalities,

See above, and see http://doc.otrs.org/.

desiging,

Dito.

database design and database structures.

See this picture: ftp://ftp.otrs.org/pub/otrs/misc/otrs-1.2-database.png Please don't get me wrong, but do yourself a favour and read this fine article: http://www.catb.org/~esr/faqs/smart-questions.html With kind regards, Robert Kehl -- ((otrs.de)) :: OTRS GmbH :: Norsk-Data-Str. 1 :: 61352 Bad Homburg http://www.otrs.de/ :: Tel. +49 (0)6172 4832388