"Socionics organizes a person's psyche by dividing it into eight separate functions; this organizational structure is commonly referred to as Model A. Model A is one of the central foundations of socionics. Each function serves a different purpose and contains one information element. Put another way, Model A can be thought of as a synthesis of functions and information elements. Each sociotype has a unique pairing of functions and information elements, which gives each sociotype a unique Model A formulation."