Metzed - 10:32 pm on Aug 2, 2010 (gmt 0)

I'm writing a web application for a client and trying to get my head around ownership. One of the questions raised was if a competitor of my client rings me up and asks me to develop a similar application for them, what will I do?

Can anyone help me here and touch on what I need to be aware of. I'm not completely sure of what the answer should be. I've been reading about IPR, but none the wiser really!