ABSTRACT
All relationships that we have dealt with so far in previous chapters have been binary relationships. Although binary relationships seem natural to most of us, in reality it is sometimes necessary to connect three or more entities. If a relationship connects three entities, it is called a ternary or 3-ary relationship. If a relationship connects more than three entities (n entities), it is called an n-ary relationship, where n equals the number of entities that participate in the relationship. ”e n-ary relationships (n ≥ 3) are also referred to as higher-order relationships.
