![]() It is central part of organization for which software is being designed. It manages all operations of Library Management System. ![]() All these relationships are shown in diagram.Ĭlass Diagram for Library Management System simply describes structure of Library Management System class, attributes, methods or operations, relationship among objects. Many books are associated with one librarian and this represents many-to-one or one-to-many type of relationship. One user has only one account that is denoted by 1 and this represents a one-to-one type of relationship. We can see in diagram many users are associated with many books denoted by * and this represents a many-to-many type of relationship. For denoting one element we use 1, for zero elements we use 0, and for many elements we use *. These relations can be one-to-one, many-to-many, and many-to-one or one-to-many. Multiplicity means that number of elements of a class is associated with another class. All of these, share a relationship and these relationships are known as aggregate relationships. Further, for “Account” class, “User” is a superclass. These classes are User, Book, and Librarian as shown in diagram. Software Engineering | Requirements Engineering Process. ![]()
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |