This Package Diagram Example can show the structure and the dependencies between subsystems or modules. By displaying various views of a system, such as a multi-layered (aka multi-tiered) application - multi-layered application model, The key feature of a package diagram is that it is logical, with each element, group, and class connecting in a logical sequence. UModel is a simple tool for illustrating the structure of packages, profiles, and namespaces. UModel can generate a package dependency diagram for any package in the Model Tree, or you can easily create package diagrams. The UModel package diagram toolbar allows for quickly adding packages, profiles, and package relationships, such as package dependency, package import, package merge, and profile application.