Exactly what I thought. If you're designing backbone of your application then being sloppy can be very expensive in the long run. Of course you still need to se

Exactly what I thought. If you're designing backbone of your application then being sloppy can be very expensive in the long run. Of course you still need to see the difference between essential elements and those that can be tackled later (usually parts of functionality that have nothing depending on them). Personally I find it very hard to do software design on initial stages of a project. It is similar to deciding on the laws of chemistry when building a tree, if you chose wisely it will grow naturally, if you make a mistake project completion may become impossible.