Hi Tej,
Please refer the below link which will tell you the basic workflow of ASA.
http://www.fwbuilder.org/4.0/docs/gs/CiscoASA/gs-cisco-asa-pix.html
Which will have the info about the interfaces, security zone, access-list and other basic needs for configuring ASA.
Please do rate if the given information helps.
By
Karthik