As an analysis step, often it is desirable to capture simple system requirements. These are eventually realized by Use Cases.
A Package is a namespace as well as an element that can be contained in other package's namespaces.
Specify the Requirement of a system. Note that there are a few different requirement types, such as.
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.
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.