Hello, Once again thanks for your responses.
I decided that my application will be creating a hidden directory with database files in user's home directory at first use. It means that there will be separate databases for each user on a particular machine. This allows to encrypt the database and prevents users from seeing each other's measurements. Is this a right approach? I hope so ;) Later on, I plan to create a server side application (to keep track of many patients measurements in the hospital) and then I will probably use JavaCards (I would like to thank Mr Francois Orsini for pointing it out). Regards, Stanley
