The idea of one design is to assure that those wishing to race all start with identical yachts, the measurements and weights being very similar. Though each will differ marginally because of different building techniques, this difference will be quite small and will not give anyone an advantage.
The skill will come from the skippers ability to set up and sail the yacht and to make it go faster than the others, this can only be achieved with practice.
To make the competition fair for all, certain rules need to be followed, these are as follows.