According to a website called business balls.com and other various online resources (which I won't bore you with right now), most modern personality systems are just refined variants of the age-old temperament theory. It has bothered me ever since I started studying MBTI as to how these various systems fit together.
I mean while I know there are technically infinite variations on human cognitive processes, behavior, etc., it seems to reason that in some very basic ways, they must converge. There must be basic patterns where a particular arrangement of cognitive functions provide an inclination toward certain behaviors, or where certain temperaments give way to particular sets of cognitive functions. (I say this because patterns and sequences make up the very framework of our existence, DNA, for example.)
I know this topic has been discussed on here before, but I want to hear your thoughts again, ESPECIALLY if you have been studying it for several years and if you have delved into various systems. Before learning of MBTI, I spent many hours researching the Four Temperaments theory. And now, my aunt has introduced me to the color theory, which is nothing but temperament under a new name. I have purposely left out the supine temperament, as I believe it can be accounted for within various secondary combos of extroverted and introverted tendencies.
This stuff woke me up at the crack of dawn and I couldn't get it out of my head, so I had to write it down. I have been pecking away on this iPad for the past two hours, trying to fit the puzzle pieces together. I can provide reasoning for my conclusions; just be aware that it will take me a while to bring them from the abstract into the concrete. I submit these temporary conclusions to you, in hopes that others can also provide reasoning and insight, help me correct the flaws in my theory. I'm not married to it, I just want to formulate a concise picture in my understanding.
Also, with all the things in the world to think about and spend my energy on, I honestly don't know why I keep digging at this. But it's as if there is something there, something intricate and once I grasp it, maybe I can explain it to others so they will grasp it, too, or maybe it will be one more file in my mental database of useless information, haha. I think personality studies should come with a warning label: addictive.
Hartman color theory compared with Temperament theory, MBTI and Enneagram Theory.
* Cholerics are take-charge individuals, at the the core. They don't usually mind confrontation.
Possible combos under Reds, aka, Cholerics
*Sanguines are playful and energetic for the most part.
Possible combos under Yellows, aka Sanguines
ESTP & ENTP, depending on their penchant toward Choleric or Sanguine tendencies.
Likely Enneagrams include predominantly 8w9, 8w7, 7w8, 7w6
Likely Enneagrams include predominantly 3w4, 3w2, 7w6...maybe 7w8
Likely Enneagrams include predominantly 3w4, 3w2, 7w6
*Phlegmatics are predominantly easy-going introverts. They often dislike confrontation.
Possible combos under Blue, aka Phlegmatics
INTP (Phleg/Mel) Likely Enneagrams include predominantly 5w6,5w4
INFP (Phleg/Mel) Likely Enneagrams include predominantly 4w5, 2w3, 4w3,
Some INxPs may also be a 9. (Also, some INFPs may have a playful secondary or tertiary sanguine temperament.)
ISFP (Phleg/San) Likely Enneagrams include predominantly 2,4,6 with all their various wings.
Some INFJs fall into this category.
Likely Enneagrams include predominantly 2w1, 1w2,1w9,9w1,9w8
*Melancholies are introverted creators.
Possible combos under White, aka Melancholies
ISTJ (Mel/Chlor) Likely Enneagrams include predominantly 1s.
INTJ(Mel/Chlor) Likely Enneagrams include predominantly 9s, 5s & 6s.
Some INFPs and INTPs may fall into this category. (Mel/San)
Likely Enneagrams include predominantly 4s & 5s.
Enneagram 4&9 variations are prevalent among this breed of INFJs