How different between Taichi quan and Taichi Dao Yin?

This is how I realize how different between Taichi quan and Taichi Dao Yin since I have been learning Taichi quan and Dao Yin shu for many years as below:

Different:

1. Taichi quan means Taichi boxing, a kind of martial art, but Taichi Dao Yin is only a kind of traditional exercise.

2. The goal of Taichi quan is attacking and defending, however, the goal of Taichi Dao Yin is preserving health.

Relationship:

1. Taichi Dao Yin is created from Xuong Wei who borrowed some part of movement shapes from Taichi quan.

2. Dao Yin shu could be a basic training to Taichi quan.

3. Practicing Taichi Dao Yin could keep concentrate on attacking and defending as Taichi quan.

4. Never concentrate on attacking and defending but only keep mind on breathing and movement when practicing Taichi quan, and then we say this is not practicing Taichi quan but is practicing Dao Yin shu.

 And I recommend people that if you like to know more about Taichi Dao Yin, You may goolge Xuong Wei. I will update if I have further information.