Shopping Mall Software Specs - repost

I want the specs of a Shopping Mall kind of a software, NOT the software itself. It's not a big house like Pantaloon, Westside, etc but still I need to know what is required to cover the whole operation with details of forms & reports, front-end, back-end & MIS. Also included details of any specific hardware, etc. will be good. Suggestion about cost, product is also welcome (write it in message)