Whereas the traditional er model has an even and balanced style of entities and complex relationships among entities, the star model is very asymmetric.
传统的ER模型具有均匀且平衡的实体样式和实体之间的复杂关系，而星型模型却是完全不对称的。
2
It bought from Lucasfilm the licence for construction toys based on the "Star Wars" films, and now makes dozens of complexStar Wars play sets (see picture).
However, the snowflake structure seems more complex and could tend to make the business users feel more uncomfortable working with it than with the simpler star model.