CROSSTYPE basics ▸ functions
THE EIGHT FUNCTIONS

Basics · part 3 of 5 · ◂ The information elements · overview · The four quadras ▸

§1 EIGHT SEATS, TWO DIALS

Model A — the classical architecture — hands every type the same eight seats, called functions, and deals the eight elements into them, one each. The seat an element lands in sets two dials at once: strength (how capably you process that kind of information) and value (how much you care about it). Strong-and-valued feels like identity; strong-but-unvalued feels like a chore you happen to be good at; weak-but-valued feels like a craving; weak-and-unvalued is simply a sore spot.

The seats pair up into four blocks, and the blocks are the fastest way to feel the model: the Ego (seats 1–2) is what you confidently are; the Super-ego (3–4) is what you can perform but quietly defend; the Super-id (5–6) is what you hope other people bring; the Id (7–8) is what you can do and don't bother with.

§2 THE SEATS, ONE BY ONE
functionhow it behaves
base (1)Runs constantly and free of charge — it is what you do when nobody asked anything of you. From the inside it rarely feels like a skill at all, which is why people routinely undervalue their own.
creative (2)The instrument you pick up deliberately, mostly in service of others: it is how you help. Strong and flexible, but switched off when nothing calls for it.
role (3)A uniform you can wear convincingly for an afternoon — the quiet person working a reception line. Fine in short stretches; sustained demand here reads as pressure.
vulnerable (4)The genuine weak point: narrow bandwidth, real pain when leaned on, and the origin of your most predictable frustrations. Socionics types people by this seat more surely than by their talents.
suggestive (5)The standing request. Help aimed here arrives as relief — the decisive friend appearing exactly when you were stuck — and when it goes missing, it is felt as an unnamed lack.
mobilizing (6)Small skill, large appetite. Progress here is disproportionately energizing, which makes this the one seat where encouragement and coaching visibly work.
ignoring (7)Competence you decline to advertise: you can, and mostly choose not to. It comes out in private, or when you are annoyed into it.
demonstrative (8)A strength that never asks for credit — running constantly in the background, joked about more than claimed. It is also the seat the two models read differently, which is the story of the next-but-one page.

Every type page shows a full dealt-out stack — IEI, for instance — with each element in its seat.

§3 WHY THE SEATS MATTER

The three-letter type codes are simply the elements in seats 1 and 2 — ILE is intuition (Ne) leading with logic (Ti) assisting. And when two people meet, their stacks collide: your base element lands in some seat of the other person's stack, and that geometry — strength meeting craving, strength meeting sore spot — is what the sixteen intertype relations formalize. The collision table on every relation page is exactly this, worked out row by row.

Read next: The four quadras

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