The first two dichotomies (Logic VS Ethics, Intuition VS Sensory) provide the base for the socionics aspects. Each member of a dichotomy is divided into a pair of aspects. The difference between two socionika aspects from one member of a dichotomy is based on the 3rd dichotomy (Introversion VS Extroversion).
Special symbols are commonly used in socionics to make it easier to mention aspects in texts and schemas. The black symbols are for extroverted socionics aspects and the white symbols for introverted.
Understanding of: praxis; efficiency of an action; understanding the difference between effective and ineffective behaviour.
Cause-and-Effect relationships logic.
Understanding of: a theory; a structure; a disposition of the elements within a system, a correlation, a hierarchy, a system and a scheme. Seeing the world as a schema of different objects and the ability to pick up the most important object. Induction-deduction logic.
|Ethics||Ethics of emotions||[:bE:]||
Understanding of: emotional state. Ability to affect other's emotions; to understand, control and use your own emotions. Empathy.
|Ethics of relationships||[:wE:]||
Understanding of: human relations and interaction; social behaviour; moral values. Ability to see and use interpersonal relations.
|Sensory||Sensory of power||[:bS:]||
Understanding of: power; aggression; territory; space; domination; control. Power-based methods to achieve one's goals. Ability to see and notice details of the external qualities of the objects.
|Sensory of sensation||[:wS:]||
Understanding of: comfort; physical sensations, cosiness. Focusing on internal qualities of the objects - health, comfort (“soft”-”hard”, “cold”-”hot”).
|Intuition||Intuition of opportunities||[:bI:]||
Understanding of possibilities, opportunities. Ability to foresee possible outcomes and new horizons. Focusing on the essence of an object.
|Intuition of time||[:wI:]||
Understanding of: time. Seeing world on dynamic, noticing changes. Ability to make predictions. Perceives the inevitability of future events and notices ties to the past. Focusing on the atmosphere, general image of an object.
All people have all the 8 aspects, but it is the matter of the position an aspect takes in the scheme of the type's information exchange that defines the character.
The type's information exchange scheme — Model A — is explained in the step 3.