JavaCard OS

I would like to know what is the best solution to store dynamic data on smart card.

My applet need to store some data which are consist of family, name, picture and description. All these data have dynamic length.

I know I should handle dynamic memory management to store these dynamic data. But how to do this?

Any suggestions?

You might want to look at the photo applet demo that comes with the Javacard sdk from oracle and also the openpgp applet here in the forums. They should give you some ideas on how to do what your looking for.