What is the difference between behaviour and personality?
Personality is a stable, consistent pattern of thoughts, behaviors and emotions. Behavior is an expression of personality in context. Understanding behavior determines how a given personality will react or behave in certain situations or circumstances.
A person generally described as "calm, warm and friendly" might become "tense and explosive" in a stressful situation. Another person appearing to have the same personality traits may thrive and do amazing things in the same situation.
So simply understanding one's personality traits has limited value in the workplace, team environment, or relationship. Behavioral assessments provide much more value in improving the effectiveness of human interaction in any environment