User269602965 posted
Data modelling is the developers process of creating the data model.
Data model is your database objects (both logical and physical) and entity relationships between objects, all without data.
The data model is most often created during the gathering of database requirements as a foundation for the user application development.
The data model can be modified at a later time as the user transitions to prototype testing.
http://www.amazon.com/Beginning-Relational-Data-Modeling-Second/dp/1590594630/ref=sr_1_6?s=books&ie=UTF8&qid=1313358435&sr=1-6