UML14 — Package symbol as a polygon

Summary: A package is a grouping of model elements. However, the rectangular shape of the package symbol makes it difficult to group model elements that have fixed geometrical position to each-other. In other words, the rectangular package shape often requires to change geometrical position of the model elements that belong to the group. It is almost impossible to use the rectangular package to show overlapping groups of model elements.

For example, it is difficult to use the rectangular package symbol to show the objects in a class diagram that belong to a certain thread, or to show the use cases in a use case diagram that belong to a certain group.

declined