So I delivered pizza on a marine base for many years. One thing I remember was they used smart cards. I was browsing parallax's store and saw that smart card readers are only 10 bucks, and the cards are less than $2!
This got me to thinking, there are a few places in my project where it may make sense to intergrate a smart card. One instance would be to transfer the data from a urinalysis box to the actual hydration pack or o'Cammel as were calling it. Another may be to store the data about whether the soldier was drinking water when he was alerted too, that way when he ends up in sick bay with dehydration, the nurse can scan his card and see if he was actually drinking when o'Cammel alerted him too!
My question is, are smart cards in standard use, do soldiers carry one or multiple smart cards, what kind of data is on these cards? If lets say this project went somewhere and got a grant for acuall use would it be easy to write to the smart cards soldiers carry or even allowed? If the system used a smart card, but it meant the soldier had to carry an extra just for the o'Cammel it would seem pretty pointless. I guess im just asking if the use of smart cards sounds like a good idea to integrate in to technology the soldiers may already be carrying?