this art is almost similar like Bazi, it using stars to interpret you Destiny and Luck.
This is the Terminology
Zi Wei (紫微) - literally "purple micro"; it is the most auspicious star in the chart.
Dou (斗) means "to put together".
Shu (数) means "to calculate".
Zi Wei Dou Shu thus means the study of a person's life based on the movement and location of the Zi Wei Star and 100+ other stars at the specific time the person was born.
It has 12 palaces and 14 major stars and left is minor stars.