Class diagram is the backbone of object-oriented modeling - it shows how different entities (people, things, and data) relate to each other. In other words, it shows the static structures of the ...

Sequence diagrams are useful for object oriented analysis and design, as they help to identify the classes, methods, and attributes that are needed to implement the system's functionality and ...

This paper presents visual constraint diagrams (VCD), an extension to UML (Unified Modeling Language) object diagrams for expressing constraints over object models. VCD allows designers to express ...