Entity associations -

I started reading the unit framework book. In the first part of the book, this unit and object describes the similarities and variations. It writes:

Each unit has links with other entities.

What is the meaning of relationships with other organizations? Is it like a relationship? Association in my language means community (!). So I can not understand what it means.

Yes, it means relationship. Each entity can have a relation / relationship with other institutions which allow some advanced concepts to load related entities, construct complex questions, or load real assets on demands according to a question.

Example:

  Public class commands {public virtual icons & lt; Order item & gt; Order items {get; Set; }} Public Class OrderItem {Public Virtual Order Order {get; Set; }}   
 Here we have two organizations related to one-to-many relationship, both institutions have the property of navigation for their respective institutions.