An example of problematic programming is when your at a ATM machine trying to withdraw money out of your checkings or savings account. And for some reason the ATM machines denies your request maybe because the ATM is not working properly. Or there has been identity theft detected in your account so the bank does not want to give you your money because they have to identify that it is you who owns that checkings account. Another example could be when your ready to use your credit card to buy something online and then it will ask you if you want to put the items in your cart. Then it will ask you for your billing information including where do you want to item to be shipped at. Then the order will be put as an output as the system online will process your request. Then it will give you a conformation number of your transaction, bill you, and then ship your item at the address you priovde.