Made with
Related Solutions

About UML

Unified Modeling Language (UML) is a language of graphic description for object modeling in the field of software engineering. UML was created for definition, visualization, designing of software systems. It was developed in the 1990s by Grady Booch, Ivar Jacobson and James Rumbaugh at Rational Software Corporation.

In 1997 was adopted the UML 1.1 version by the Object Management Group (OMG).

In 2000 the UML 1.4.2 version was accepted by the International Organization for Standardization (ISO) as an open standard ISO/IEC 19501:2005 that uses graphic notations for creating visual models of object-oriented software systems. UML took in the notations of the Object-modeling technique, Object-oriented software engineering and the Booch method. UML can be applied for all the processes of the development life cycle.

In 2005 by OMG was adopted the UML 2.0 version that was seriously reworked. The last published version in 2011 was UML 2.4.1.

Types of UML Diagrams

Two types of diagrams are used in UML: Structure Diagrams and Behavior Diagrams. Behavior Diagrams represent the processes proceeding in a modeled environment. Structure Diagrams represent the elements that compose the system.

There are seven types of Structure Diagrams that must be present in any modeled system:

The Behavior Diagrams group includes:

The subgroup of Interaction Diagrams controls the flow of control and data, and includes:

UML Building Blocks

The UML building blocks determine as things, relationships and diagrams.

There are four types of things in UML: Structural, Behavioral, Grouping and Annotational.

Sructural things (the static part of the model):


Class represents a set of objects that have the same structure, behavior, and relationships with objects of other classes. Classes are represented as boxes that consist of name, attributes, operations, and responsibilities.

UML Building Blocks - Class


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.

UML Building Blocks - Interface


Collaboration determines interactions between the elements.

UML Building Blocks - Collaboration

Use case:

Use case is a description of the system behavior on the request from the outside of this system.

UML Building Blocks - Use-Case


Component describes the physical part of the system.

UML Building Blocks - Component


Node is a resource available during the run time.

UML Building Blocks - Node

Behavioral things (dynamic part of the model):


Interaction is a set of messages that the elements exchange for execution the tasks.

UML Building Blocks - Message

State machine:

State machine defines the states of the object that go in response to the events.

UML Building Blocks - State

Grouping things (the mechanism for grouping the UML model elements):


Package groups the classes and other packages.

UML Building Blocks - Package

Annotational things (the mechanism for capturing the remarks, descriptions, and comments of the UML model elements):


Note is a textual explication.

UML Building Blocks - Note

Relationship :


Association is a relationship that connect two classes.

UML Building Blocks - Association


Dependency is a relationship when some changes of one element of the model can need the change of another dependent element.

UML Building Blocks - Dependency


Generalization is an association between the more general classifier and the more special classifier.

UML Building Blocks - Generalization


Realization is a relationship between interfaces and classes or components that realize them.

UML Building Blocks - Realization

UML  Component Diagram

Pic 1. UML component diagram example.

This diagram was redrawn from

The documents of ConceptDraw PRO with UML Diagrams are vector graphic documents. They are available for reviewing, modifying or converting to a variety of formats: image, HTML, PDF file, MS PowerPoint Presentation, Adobe Flash or MS Visio.

Related Solution:


UML Block Diagram

Use Case Diagram Taxi Service UML. This sample was created in ConceptDraw PRO diagramming and vector drawing software using the UML Use Case Diagram library of the Rapid UML Solution from the Software Development area of ConceptDraw Solution Park. This sample shows the work of the taxi service and is used by taxi stations, by airports, in the tourism field and delivery service.UML  Block Diagram
Picture: UML Block Diagram
Related Solution:

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 general issues,classes of a system, attributes, operations, interfaces, inheritance, and the relationships between them.Control Package Class Diagram
Picture: UML Class Diagram Notation
Related Solution:

UML Diagramming Software

The UML Diagrams are widely used by software developers and software engineers. They can draw the UML Diagrams manually on the paper, but it is incredibly convenient to use the special UML diagramming software. The UML diagramming software allows you to draw the UML Diagrams in a few minutes.UML Software for Macintosh and Windows
Picture: UML Diagramming Software
Related Solution:

UML Diagram

While developing software, it is very important to have a visual model, because it helps to represent the logic and the architecture of an application. Experienced engineers use UML diagrams to denote relationships between classes and their instances. UML is a general language for a set of diagrams like deployment diagrams, object diagrams or use case diagrams. This diagram represents UML class diagram used for a software system development using an object-oriented method. Class diagrams are categorized as static structure diagrams that depict the physical structure of a system. Class diagram divides a software system's structure into "classes". Classes are defined by the methods and variables of objects. UML Class diagram is used to depict relationships and source code dependencies between objects.UML Diagrams
Picture: UML Diagram
Related Solution:

UML Diagram Types List

Two types of diagrams are used in UML: Structure Diagrams and Behavior Diagrams. Behavior Diagrams represent the processes proceeding in a modeled environment. Structure Diagrams represent the elements that compose the system.UML class diagram of the AbstractFactory pattern
Picture: UML Diagram Types List
Related Solution:

UML Package Diagram. Design Elements

UML Package Diagram illustrates the functionality of a software system. 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 Package library.UML Package Diagram: Design Elements
Picture: UML Package Diagram. Design Elements
Related Solution:

Diagramming Software for Design UML Component Diagrams

UML Component Diagram illustrate how components are wired together to larger components and software systems that shows the structure of arbitrarily complex systems. ConceptDraw Rapid UML solution delivers libraries contain pre-designed objects fit UML notation, and ready to draw professional UML Component Diagram.Diagramming Software for  Design UML Component  Diagrams (mac, win)
Picture: Diagramming Software for Design UML Component Diagrams
Related Solution:

SysML Diagram

To draw SysML diagrams use the ConceptDraw PRO diagramming and vector drawing software extended with the Rapid UML solution from the Software Development area of ConceptDraw Solution Park.SYS ML Diagram - Taxonomy
Picture: SysML Diagram

The Building Blocks Used in EPC Diagrams

Event-Driven Process Chain Diagrams is using for improvement throughout an organisation. ConceptDraw PRO - software that reduces the time needed to create a EPC diagrams.Design elements for EPC diagrams (Win, Mac)
Picture: The Building Blocks Used in EPC Diagrams
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.Flowchart Symbols and Meaning, workflow diagram symbols, process flow diagram symbols
Picture: Basic Flowchart Symbols and Meaning
Related Solution:
1 Diagram Software
Professional business graphics tool for drawing schemes, diagrams and illustrating business documentation
1 Mind Map Software
Excellent tool for Mind Mapping, Planning, Brainstorming, and Building Processes
1 Project Management Software
The full complement of features needed to successfully plan and execute projects, including task and resource management, reporting, and change control