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Web services for credit card validation

 
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Can i Assume that credit card validation system is a separate application that provides web services for validating the cards and there fore use web services in my architecture? Any comments?
 
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What I would do is to hide the implemntation[connetion] behnd a generic interface. How to connect to th external system should be a moot point - assume some sort of an adapter in between.
The data required [synchronous processing] is only yes or no as mentioned previously in some thread here.. so if u assume mutual authentication between servers, I guess all you would need to show is the innterface and the implementing class thta can be swaapped out as necessary.
 
Laxmi Raghu
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Thanks for the information. I searched the previous thread but couldn't locate by it's title. So, started new one.

Thanks for the idea on providing interface to access the web service.

I'm still not clear whether i can go ahead with such an assumption for my certification or not. Will Sun accept it?
 
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