If you haven't figured out the final data requirements, then you have work to do. Its a corollary of the "give me your data structures and I'll understand your

If you haven't figured out the final data requirements, then you have work to do. Its a corollary of the "give me your data structures and I'll understand your program, give me just your code and I'll still be clueless" mantra. The Database should have a strict schema before code is written. Having a schemaless datastore is only flexible in the sense that it lets ou shoot yourself int eh foot easily.