My assignment does not mention that I should use relational database. So, I guess I should explain why my choice of persistence mechanism. Someone there has had the same situation? Also described why the choice? Any sugestion?
Complicated issue ... until a few years ago was unique technology for reliable persistence and all wore so automatically. Today with the advent of NoSQL philosophy, became more a decision to be taken. I'll have to study the pros and cons in order to justify the decision document.
subject: Relational database, NoSQL, Other types of persistence