Made with
ConceptDraw
DIAGRAM 14

UML Class Diagram Notation

When it comes to system construction, a class diagram is the most widely used diagram. UML Class Diagrams is a type of static structure diagram that is used for general conceptual modeling of the systematics of the application. Such a diagram would illustrate the object-oriented view of a system . The object orientation of a system is indicated by a class diagram. It describes the structure of a system by showing the:

  • classes of a system,
  • attributes,
  • objects,
  • operations,
  • and the relationships between classes.

UML Class Diagram Notation *

Example 1. Control Package Class Diagram

ConceptDraw DIAGRAM is designed to help you create UML diagrams quickly and easily. You'll get ready-made templates, examples and symbols as well as tools specifically designed to build the diagram you need.



Video. How To Create UML Diagram (2min 25sec)


The following table represents notations that are used on the UML Class Diagrams:

Diagram element Graphical presentation Description
Class UML Class Diagram Notation - Class Class represents a set of objects that have the same structure, behavior, and relationships with objects of other classes.
Attribute UML Class Diagram Notation - Attributes Attribute is a typed value that defines the properties and behavior of the object.
Operation UML Class Diagram Notation - Operation Operation is a function that can be applied to the objects of a given class.
Responsibility UML Class Diagram Notation - Responsibility Responsibility is a contract which the class must conform.
Interface UML Class Diagram Notation - Interface Interface is an abstract class that defines a set of operations that the object of the class associated with this interface provides to other objects.
Association UML Class Diagram Notation - Association Association is a relationship that connect two classes.
Aggregation UML Class Diagram Notation - Aggregation Aggregation is an association with the relation between the whole and its parts, the relation when one class is a certain entity that includes the other entities as components.
N-ary Association UML Class Diagram Notation - N-ary Association N-ary association represents two or more aggregations.
Composition UML Class Diagram Notation - Composition Composition is a strong variant of aggregation when parts cannot be separately of the whole.
Generalization UML Class Diagram Notation - Generalization Generalization ia an association between the more general classifier and the more special classifier.
Inheritance UML Class Diagram Notation - Inheritance Inheritance is a relationship when a child object or class assumes all properties of his parent object or class.
Realization UML Class Diagram Notation - Realization Realization is a relationship between interfaces and classes or components that realize them.
Dependency UML Class Diagram Notation - Dependency Dependency is a relationship when some changes of one element of the model can need the change of another dependent element.
<< >> UML Class Diagram Notation - Relationship Allows to define the properties of the dependency relationship between classes or classes and packages.
{ } UML Class Diagram Notation - additional properties of association Allows to indicate the additional properties of association.
Multiplicity UML Class Diagram Notation - Multiplicity Multiplicity shows the quantity of instances of one class that are linked to one instance of the other class.
Package UML Class Diagram Notation - Package Package groups the classes and other packages.
Note UML Class Diagram Notation - Note Note is a textual explication.
Note connector UML Class Diagram Notation - Note connector Note connector is a connection between the note and elements.


The following features make ConceptDraw DIAGRAM the best UML Software:

  1. You don't need to be an artist to draw professional looking diagrams in a few minutes.
  2. Large quantity of ready-to-use vector objects makes your drawing diagrams quick and easy.

    uml class diagram - symbols

  3. Great number of predesigned templates and samples give you the good start for your own diagrams.
  4. ConceptDraw DIAGRAM provides you the possibility to use the grid, rules and guides. You can easily rotate, group, align, arrange the objects, use different fonts and colors to make your diagram exceptionally looking.
  5. All ConceptDraw DIAGRAM documents are vector graphic files and are available for reviewing, modifying, and converting to a variety of formats: image, HTML, PDF file, MS PowerPoint Presentation, Adobe Flash, MS Visio.

    uml class diagram - export

  6. Using ConceptDraw STORE you can navigate through ConceptDraw Solution Park, managing downloads and updates. You can access libraries, templates and samples directly from the ConceptDraw STORE.

    uml class diagram solution

  7. If you have any questions, our free of charge support is always ready to come to your aid.




TEN RELATED HOW TO's:

UML Composite Structure Diagram. Design Elements →

UML Composite Structure Diagram shows the internal structure of a class and the possible interactions at this structure. ConceptDraw has 393 vector stencils in the 13 libraries that helps you to start using software for designing your own UML Diagrams. You can use the appropriate stencils of UML notation from UML Composite Structure library.UML Composite Structure Diagram. Design Elements *
Picture: UML Composite Structure Diagram. Design Elements
Related Solution:

Basic Flowchart Symbols and Meaning →

While creating flowcharts and process flow diagrams, you should use special objects to define different statements, so anyone aware of flowcharts can get your scheme right. There is a short and an extended list of basic flowchart symbols and their meaning. Basic flowchart symbols include terminator objects, rectangles for describing steps of a process, diamonds representing appearing conditions and questions and parallelograms to show incoming data. This diagram gives a general review of the standard symbols that are used when creating flowcharts and process flow diagrams. The practice of using a set of standard flowchart symbols was admitted in order to make flowcharts and other process flow diagrams created by any person properly understandable by other people. The flowchart symbols depict different kinds of actions and phases in a process. The sequence of the actions, and the relationships between them are shown by special lines and arrows. There are a large number of flowchart symbols. Which of them can be used in the particular diagram depends on its type. For instance, some symbols used in data flow diagrams usually are not used in the process flowcharts. Business process system use exactly these flowchart symbols.Basic Flowchart Symbols and Meaning
Picture: Basic Flowchart Symbols and Meaning
Related Solution:

Selecting & Creating Flowcharts →

ConceptDraw Flowcharts visualize a process or algorithm of program as step/operation blocks of various shapes connected with arrowed lines showed the process flow direction. They are used to visualize business or technical processes and software algorithms.Selecting & Creating Flowcharts *
Picture: Selecting & Creating Flowcharts
Related Solution:

Chen ERD Diagram →

The vector stencils library Chen ERD from the solution Entity-Relationship Diagrams (ERD) contains specific symbols of the Chen ERD notation including entity symbols and relationship symbols for ConceptDraw DIAGRAM diagramming and vector drawing software. The Entity-Relationship Diagrams (ERD) solution is contained in the Software Development area of ConceptDraw Solution Park.Chen ERD Diagram *
Picture: Chen ERD Diagram
Related Solution:

Cross-Functional Flowchart →

There are many tools to manage a process or to illustrate an algorithm or a workflow. Flowcharting is one of those tools. However, it may be difficult to show complex processes that require multiple attributes or several people in a simple flowchart, so a cross-functional flowchart would be a solution for that situation. To create such flowchart, group processes and steps to labeled rows or columns, and divide those groups with horizontal or vertical parallel lines. It is worth mentioning that there are different types of cross-functional flowcharts, like opportunity or deployment flowchart. This diagram shows a cross-functional flowchart that was made for a trading process. It contains 14 processes, distributed through 5 lines depicting the participants who interact with the process. Also there are connectors that show the data flow of information between processes. The cross-functional flowchart displays a detailed model of the trading process, as well as all participants in the process and how they interact with each other. The lines in the flowchart indicates the position, department and role of the trading process participants.Cross-Functional Flowchart
Picture: Cross-Functional Flowchart
Related Solution:

UML Class Diagram Example for GoodsTransportation System →

Class Diagram for Goods Transport System in UML. This sample was created in ConceptDraw DIAGRAM diagramming and vector drawing software using the UML Class Diagram library of the Rapid UML Solution from the Software Development area of ConceptDraw Solution Park. This sample shows the concept of working of the transport company and is used by transport companies, carriers at the transportation of various goods.UML Class Diagram Example for GoodsTransportation System *
Picture: UML Class Diagram Example for GoodsTransportation System
Related Solution:

Electrical Symbols — Maintenance →

Electrical maintenance - troubleshooting electrical circuit. The diagrams are a big help when workers try to find out why a circuit does not work correctly. 26 libraries of the Electrical Engineering Solution of ConceptDraw DIAGRAM make your electrical diagramming simple, efficient, and effective. You can simply and quickly drop the ready-to-use objects from libraries into your document to create the electrical diagram.Electrical Symbols — Maintenance *
Picture: Electrical Symbols — Maintenance
Related Solution:

How to Draw Pictorial Chart. How to Use Infograms →

How to draw pictorial chart quick, easy and effective? ConceptDraw DIAGRAM offers the unique Pictorial Infographics Solution that will help you! Pictorial Infographics solution contains large number of libraries with variety of predesigned vector pictograms that allows you design infographics in minutes. There are available 10 libraries with 197 vector pictograms.How to Draw Pictorial Chart. <br> How to Use Infograms *
Picture: How to Draw Pictorial Chart. How to Use Infograms
Related Solution:

Pyramid Diagram →

The Time-Money-Quality Triangle illustrates an advertising truism, that you can't have all three.Pyramid Diagram *
Picture: Pyramid Diagram
Related Solutions:
ConceptDraw
DIAGRAM 14