An individual's personality is something of the person that makes it different from the others, and there are several things that would make up to make workers, each with their own personality, external.
Each personality is the identity of that person. That makes it different from others. And there are things that will complement each other. So each have a personality outside of himself.
The personality of the individual is the identification of that person, that is different from the others. And there are things to assemble. To make people, each with its own personality, external