Cultures have various compositions, and thus different levels of cultural vitality. There are three major tiers of cultural vitality and a nominal culture that's called Tier I.
- Tier I: Nominal culture
- Tier II: Operational culture
- Tier III: Sustainable culture
- Tier IV: Gravitative culture
These tiers are differentiated on whether they exhibit six vital signs, each represented by two to four vital indicators.
English 
Chinese