**3.1 Types of personality model**

1.Enneagram: The Enneagram consists of nine comprehensive key types that interact in a unique way.

After analyzing Enneagram number, Enneagram wing comes into picture which determines how Enneagram number uniquely relates to the personality. Enneagram wing generally emphasizes other aspects of individuality where it is common to exhibit different Enneagram type characteristics [12, 13].

The nine Enneagram types are-The Reformer; The Helper; The achiever; The individualist; The investigator; The loyalist; The enthusiast; The challenger; The peacemaker.



#### **Table 1.** *MBTI personality types.*

These key factors are embedded together to form 16 different personality types as shown in the table above (**Table 1**):

4.Big five: also known as OCEAN (openness, conscientiousness, extraversion, agreeableness, and neuroticism), describes human personality [14] by considering five features where these five features are closely interrelated where every individual has a score in these five personality feature. Therefore, this inter-relatability of the features in the Big five personality makes it suitable for multitask learning [12, 15].
