thanks everyone for the responses
I do understand that there are lot of help available in the Internet for Fiori. but if someone can help by taking one app as an example (may be "Leave request version 2 ) and give an overview of steps to be performed in Launch pad , back end and Front, that will be really great!
the reason being, there are lot of doubts when it comes to configuring launch pad and Front end. For instance, the launch pad has 2 tabs. 1 Catalogs and the 2nd is Groups. I don't know what the use of these and although I have installed required add-ons in FE and BE , I am not sure how the apps will appear on the launch pad and etc.,
thanks for your help in advance