This Business Process UML Package Diagram is commonly used to simplify complex class diagrams and organize classes into packages. A package is a collection of UML elements related to one another, such as diagrams, documents, classes, and event packages. In addition, for large projects and systems, the package diagram provides valuable high-level visibility. A package diagram is a diagram commonly used to organize high-level system factors so that the packages can be used for system organization that includes documents, diagrams, and other factors.