O'Reilly logo

C++11 for Programmers, Second Edition by Harvey M. Deitel, Abbey Deitel, Paul J. Deitel

Stay ahead with the world's most comprehensive technology and business learning platform.

With Safari, you learn the way you learn best. Get unlimited access to videos, live online training, learning paths, books, tutorials, and more.

Start Free Trial

No credit card required

Navigability

Before we begin implementing our design in C++, we introduce an additional UML notation. The class diagram in Fig. 23.2 further refines the relationships among classes in the ATM system by adding navigability arrows to the association lines. Navigability arrows (represented as arrows with stick arrowheads in the class diagram) indicate in which direction an association can be traversed and are based on the collaborations modeled in communication and sequence diagrams (see Section 22.8). When implementing a system designed using the UML, you use navigability arrows to help determine which objects need references or pointers to other objects. For example, the navigability arrow pointing from class ATM to class BankDatabase indicates ...

With Safari, you learn the way you learn best. Get unlimited access to videos, live online training, learning paths, books, interactive tutorials, and more.

Start Free Trial

No credit card required