Introduction - If you have any usage issues, please Google them yourself
Modeling in the association, the existence of some cases, you need to include other categories, because it contains valuable on the associated information. In view of this, you will use the associated type to bind your basic correlation. Related category and general category like that. The difference is, the main categories and associated with a type of intersection between the line connecting the points. Figure 11 shows an example of the aviation industry association type