What is best validation framework for handling exception, legal and customer specfic validations?

Discussion is open, you can share your views on this topic at below link.

http://www.linkedin.com/groupItem?view=&gid=4605684&type=member&item=19…

This will help in choosing right tool/framework.

You can also vote for your tool/framework of choice.

http://www.linkedin.com/groupItem?view=&gid=4605684&type=member&item=19…

City/Location: Chandigarh