1.
"Model A is a detailed model of human information metabolism named after Aushra Augustinavichiute who has created it by incorporating Carl Jung's work on Psychological Types with Antoni Kępiński's theory of information metabolism.
The Ego block is a socially demonstrative, creative block that forms the core of the TIM and is usually associated with an individual's ego - their inner "I". This is an area of conscious competence and individualism, as well as conscious and active observation and influence on the world. A person is usually the most confident, informed, and energetically active on their Ego block functions. On this block, we rarely experience feelings of remorse, doubt, and shame; neither does this block shift responsibilities or blame onto others."
I will not copypaste further, read the rest here:
http://www.wikisocion.net/en/index.php?title=Model_A
Do not try to claim that all this is just classifications lol.
I do want to emphasise OTOH that Socionics does get classifications wrong. (So it's barely a detailed model like it claims. But still a model, just a shitty one where people can easily take it and not even use it as a model anymore, which is its own separate problem BTW.) It oversimplifies, like, when many different classifications would be necessary and justified, it tries to use only two (say, a dichotomy, or an IE pairing, etc).