With the ability to measure that difference is relatively more flexible than. Is not required to match, it is said that PE.In this case, we chose this format.
With the ability to measure the difference, rather than flexibility. Information is not necessarily accurate to say that it was the same in that we chose this format.
The ability to measure the difference that is more flexible Is the information need not match exactly, can say it"s like.Here we choose model according to this.