I'm part of a group of students, trying to Build a E-Ticketing Gateway for a Cinema Company. We are fairly good with the basics (we've done a few portals for schools). But none of this involved any money transactions. So I decided that before jumping in I should get a few pointers from the people who've actually done this before.
What should I/We know before starting to actually build.
So far we have planned to
Use ASP.net WebForms as the Base platform
MS SQL server
Use jQuery for interactively choosing the seats.
more importantly Integrate a payment gateway (no clue whatsoever)
Just to be clear this isn't an assignment/Homework. This is the real-deal !