The image shows the UML representation of an application module which is part of the Public Business Service square region. This region has several view objects, where directed arrows indicate relationships between some of them. The second square region below this square region is named Private Business Domain Layer. This region shows entity objects, where bidirectional arrows indicate cardinality and interrelationships between some of them. Also shown in this region are the UML diagrams for Transaction and Session objects with their respective methods.