We know human beings are complicated and personalities are more complicated to understand. Every personality has specifications. External specifications like physical appearance, look etc. More complicated are internal specifications. Internal specifications include different ego states, behaviour, mindset, attitude etc.
Internal specifications are the engines to drive the person and he behaves, acts based on the orders programmed or conditioned as per the internal specifications. These internal specifications are programmed in the mind. It is very interesting to understand the person in totality.
Relatively stable pattern of behaviours and consistent internal states that explain a person's behavioural tendencies. These stable patterns are foundation of personality dimensions. But we always see what our mind wants to see. This is called as a perception. The combination of personality traits & knowledge base generates Perception in minds of people about the person. These traits are the part of internal specifications.
Following are some of the examples of internal specifications of personality.
Talents: A recurring pattern of thought, feeling or behavior that can be productively applied. We always refer talent with brain. But talent is the right result of thought process and behaviour at the right time for the right results.
Attitude: An attitude is a hypothetical construct that represents an individual's degree of like or dislike for something. Attitudes are generally positive or negative views of a person, place, thing, or event— this is often referred to as the attitude object. (http://en.wikipedia.org/wiki/Attitude_(psychology))
Thought process: Talent is the driver of thought process of the person.
Conscientiousness: Conscientiousness is the trait of being painstaking and careful, or the quality of acting according to the dictates of one's conscience. It includes such elements as self-discipline, carefulness, thoroughness, organization, deliberation (the tendency to think carefully before acting), and need for achievement. It is an aspect of what has traditionally been called character. Conscientious individuals are generally hard working and reliable. When taken to an extreme, they may also be workaholics, perfectionists, and compulsive in their behavior. People who are low on conscientiousness are not necessarily lazy or immoral, but they tend to be more laid back, less goal oriented, and less driven by success.
Emotional Stability: How the emotional state of mind is.
Openness to Experience: This trait is the characteristic of person where he shows the flexibility and the degree how he is open to change and new experiences.
Agreeableness: Agreeableness is a tendency to be pleasant and accommodating in social situations. (http://en.wikipedia.org/wiki/Agreeableness)
Introversion and Extroversion: These are the traits of personality where you can find out the ability of person to deals with others. (http://en.wikipedia.org/wiki/Extroversion)
The question is when we speak about the specification; it should be in certain unit. Unfortunately in personalities we can not measure the units in absolute numbers.