An entity is a person, place, object, event or idea for which you want to store as well as process data. A characteristic is a characteristic or property of an entity. The terms column as well as field are used as synonyms in many database systems. A relationship is an association among entities. In a database system a one-to-many relationship is handled by using common columns in the two tables. Explain what are some other one-to-many relationships that might occur in a business?