Here is another quote from that same post (
http://intpforum.com/showthread.php?t=6582):
"An MBTI Judging type is a personality type that has directive functions as their dominant and auxiliary functions. An MBTI Perceiving type is a personality type that has Adaptive functions as their dominant and auxiliary functions"
The author then goes on to say:
"The Directive types are considered the most structured and schedule oriented, although different directive functions yield different manifestations of directivity."
I interpret this as the author saying that people who have judgement functions as their dominant functions are more structured and schedule oriented.
Yes, he does also say that different "directive" functions yield different manifestations of directivity, but he makes that similar general statement to what I am saying; that people with dominant judging functions share some similar characteristics.