As an analysis step, often it is desirable to capture simple system requirements. These are eventually realized by use cases (see Requirements).
A Package is a namespace as well as an element that can be contained in other package's namespaces (see Package).
Specify the Requirement of a system. Note that there are a few different requirement types, as listed below.
You can also create your own requirements. To do this, right-click on the Requirement class and select Properties. Type the name of the requirement into the Type field (see Requirements).
A Feature is a small client-valued function expressed as a requirement. Features are the primary requirements-gathering artifact of the Feature-Driven Design (FDD) methodology.
An Object is an instance of a class. (see Object).
To add an element to the current diagram, click on the required icon, and drag it into position on the diagram. Set an element name and other properties as prompted.
To add a relationship, click on the required icon, then click on the start element in the diagram and drag to the end element.