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"In software engineering, a class diagram in the Unified Modeling Language (UML) is a type of static structure diagram that describes the structure of a system by showing the system's classes, their attributes, operations (or methods), and the relationships among objects." [Class diagram. Wikipedia]
This UML class diagram example was created using the ConceptDraw PRO diagramming and vector drawing software extended with the Rapid UML solution from the Software Development area of ConceptDraw Solution Park.
UML class diagram
UML class diagram, object, note, interface, class,

UML diagram, UML modeling Rapid UML

UML diagram, UML modeling
Rapid UML solution extends ConceptDraw DIAGRAM software with templates, samples and libraries of vector stencils for quick drawing the UML diagrams using Rapid Draw technology.

UML diagram, UML modeling Rapid UML

UML diagram, UML modeling
Rapid UML solution extends ConceptDraw DIAGRAM software with templates, samples and libraries of vector stencils for quick drawing the UML diagrams using Rapid Draw technology.

ConceptDraw DIAGRAM UML Diagrams with ConceptDraw DIAGRAM

ConceptDraw DIAGRAM is a great UML modeling and design tool that enables you to quickly and easily generate all types of UML diagrams. ConceptDraw DIAGRAM offers a large collection of industry-standard UML object libraries for all types of UML diagrams.

ConceptDraw DIAGRAM DFD Software

Our DFD software ConceptDraw DIAGRAM allows you to quickly create DFD with data storages, external entities, functional transforms, data flows, as well as control transforms and signals. DFD program ConceptDraw DIAGRAM has hundreds of templates, and a wide range of libraries with all nesassary ready-made drag-and-drop.

Software development with ConceptDraw DIAGRAM

ConceptDraw possesses powerful tools for designing of technical documentation for object-oriented projects. The libraries included in the package allow to easily draw class hierarchies, object hierarchies and diagrams of data flows with the use of the most popular notations, including UML and Booch notations.