Judging Criteria
Each breed has a standard for what that breed of cat should look
like. A "breed council" has put together these standards
for each breed, and the CFA publishes these standards. For example,
Siamese are long and slender with tight smooth coats, Persians are short
and stocky with long, fluffy coats. Ears and muzzles must be just
so, color must fit the color class, etc.
The judge must look at all the standards for each breed and color, and
make his/her decision as to which of the cats being judged fits those
standards best. The judge first looks for the ranking of cats within a
color class and within the same sex of that color class.