Thanks for the answer, I agree with you each app has different structure, it depends on many things I just share my way of thinking on these things.

As for my english, thanks for your nice words, but the quotes I used on 'miss' or 'wrong' they don't have the use of " some one told that phrase", I use them more about things that can be written with other words, so the 'wrong' it doesn't means that is wrong, but it means that I think it's like a wrong, I know it's not the best way and you're right I'll fix that on my future comments!