[header] How to create a relational data model [title] Don't worry about tables just yet. [step] It's obvious that you're building a database, and databases (relational ones anyway) are primarily made up of tables, which are made up of rows and columns (tuples and attributes if you're really into it). [title] Worry about entity relationships. 
[step] Your first goal is to map out the relationships that different business objects have. This is the " logical modeling " portion.