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UML Diagram Types List

Types of UML Diagrams

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. UML is an open standard that uses graphic notations for creating visual models of object-oriented software systems.

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:

Notation UML

Pic. 1. UML Notation


Video 1. Types of UML Diagrams

Class Diagrams

UML Class Diagram is a type of Structure Diagrams that shows the classes of a system, attributes, operations, and the relationships between them.


Package Diagrams

UML Package Diagram is a type of Structure Diagrams that represents the packages of the model and dependencies between them.


Object Diagrams

UML Object Diagram is a type of Structure Diagrams that shows the objects of the system and attributes, and relations between the objects at a certain moment of time.


Use Case Diagrams

UML Use Case Diagram is a type of Behavior Diagrams that displays the dependencies between the actors and use cases. UML Use Case Diagram displays the system on the conceptual level.

Sequence Diagrams

UML Sequence Diagram is a type of Interaction Diagrams that describes the interactions between objects and classes that are involved in the scenario and the sequence of messages exchanged between them.


Collaboration Diagrams

UML Communication Diagram in UML 2.0 (Collaboration Diagram in UML 1.x) is a type of Interaction Diagrams that displays the interactions of objects using the sequenced messages.


Activity Diagrams

UML Activity Diagram is a type of Behavior Diagrams that graphically describes decomposition of the some activity on the components.


Component Diagrams

UML Component Diagram is a type of Structure Diagrams that shows how components are connected to larger components or software systems, and shows the dependencies among these components.


Deployment Diagrams

UML Deployment Diagram is a type of Structure Diagrams that shows the physical deployment of information generated by the software programs.


State Machine Diagrams

UML State Machine Diagram is a type of Behavior Diagrams that displays the finite state machine with states and state transitions.


Timing Diagrams

UML Timing Diagram in the UML 2.0 is a specific type of Interaction Diagrams that describes the timing constraints. UML Timing Diagrams describes the behaviors of the objects during a certain period of time.


Interaction Overview Diagrams

UML Interaction Overview Diagram is a type of Interaction Diagrams that describes an overview in which the nodes represent interaction diagrams.


Composite Structure Diagrams

UML Composite Structure Diagram is a type of Structure Diagrams that shows the internal structure of a class and the interactions of elements of the internal structure of the class.

UML class diagram of the AbstractFactory pattern

Example 1. UML Class Diagram. AbstractFactory pattern

All libraries for creating UML diagrams are available inside the ConceptDraw PRO. Templates and samples are located in the Rapid UML section of ConceptDraw STORE.

UML Diagram Solution

Example 2. UML Diagrams solution




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TEN RELATED HOW TO's:

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
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Metropolitan area networks (MAN). Computer and Network Examples

A list of parameters on which networks differ is very long. A large network with a range up to 50 kilometers is called metropolitan area network (MAN), and this type of network can include several local area networks. Metropolitan networks in their turn connect into global area networks. Here you will see a Metropolitan Area Network (MAN). This is an extensive network which occupies a large territory including a few buildings or even the whole city. The space of the MAN is bigger than LAN, but lower than WAN. MAN comprise a lot of communication equipment and delivers the Internet connection to the LANs in the city area. Computer and Networks solution for ConceptDraw PRO provides a set of libraries with ready-to-use vector objects to design various kinds of computer networks.Metropolitan area networks (MAN). Computer and Network Examples
Picture: Metropolitan area networks (MAN). Computer and Network Examples
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Types of Flowcharts

A flowchart is a simple but very functional tool when it comes to understanding a workflow or to removing unnecessary stages from a process. When drawing flowcharts, keep in mind that there are four common types of flowcharts, like document flowcharts and data flowcharts that show control over a data or document flow over a system. To show controls on a physical level, use system flowcharts. In addition, to show controls in a program, you can draw a program flowchart. This flowchart diagram represents the piece of an article editing process, that involves the author and editor. It was created using the Basic Flowchart notation that consists from the basic flowchart symbols. The start and the end of the process are indicated with "Terminator" symbols. The "Process" symbols show the action steps consisting from making edits and searching for a compromise, when the author does not agree with the suggestions of the editor . The "Process" symbol is the general symbol in process flowcharts. The "Decision" symbol indicates a branching in the process flow. There are two branches indicated by a Decision shape in the current flowchart (Yes/No, Disagree/Agree). This basic flowchart can be used as a repeating unit in the workflow diagram describing the working process of some editorial office.Types of Flowcharts
Picture: Types of Flowcharts
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Workflow Diagram

Sometimes it's difficult to find a path in work processes or to understand the requirements, especially when you are a newcomer. To get your thoughts straight, create a workflow diagram, and put everything on it. This will not only help you to get into the workflow, but also show it’s weaknesses. This illustration captures the workflow process of payment an invoice for the electricity consumed by certain enterprise. It was drawn in ConceptDraw PRO using its solution for Workflow Diagrams. Making a workflow charts means that you need to depict consistently all processes engaged to the workflow process. Then, you should connect them with symbols meaning study and analysis. Next, add symbols of decisions. A work flow diagram made precisely and correctly can help to clarify your work flow to any person.Workflow
Picture: Workflow Diagram
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UML Use Case Diagram Example - Taxi Service

UML Use Case Diagram Taxi Service - 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.Use Case Diagram Taxi Service UML
Picture: UML Use Case Diagram Example - Taxi Service
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UML Class Diagram Generalization ExampleUML Diagrams

This sample was created in ConceptDraw PRO 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 describes the use of the classes, the generalization associations between them, the multiplicity of associations and constraints. Provided UML diagram is one of the examples set that are part of Rapid UML solution.uml class diagram generalization example
Picture: UML Class Diagram Generalization ExampleUML Diagrams
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Workflow Diagram Symbols

A competent delegation of responsibilities between workers guarantees business success in most cases. At first sight, it might seem that workflow diagram symbols are quite similar to a regular flowchart. But workflow diagram is a more accurate way to present working processes. Workflow diagrams are helpful for a working process analyzation, to depict a pathway of process issues, personalize responsibilities and identify resources that will help to optimize a workflow. Generally, Workflow diagram deploys flowchart symbols for displaying work process steps and relationships. But, often it require some additions and improvements to become more professional and illustrative. The Workflow solution for ConceptDraw PRO provides the user with a big library of symbols that are designed especially for workflow diagrams.Workflow Diagram Symbols, business process flow diagram
Picture: Workflow Diagram Symbols
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UML Tool & UML Diagram Examples

You can use many tools to create a representation of a system behavior or a scheme of objects relationships. Some of them are quite abstract and useless, and some, like UML tools help clarifying both the structure and the behavior of a system. There are various types of uml diagrams and tons of examples explaining the difference between them. UML 2.2 specification has many kinds of diagrams. They are divided into two groups( structure and behavior diagrams). This class diagram shows the hierarchical structure of UML 2.2 specification. Class diagram - the most suitable tool for this task because it is designed to describe basic structure of a system. This diagram can be use as a visual aid for learning UML.UML use case diagram template. Ticket processing system
Picture: UML Tool & UML Diagram Examples
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Diagramming Software for Design UML Activity Diagrams

Activity diagram describes the business and operational step-by-step workflows of components in a system. An activity diagram shows the overall flow of control.Diagramming Software for Design UML Activity Diagrams (Win, Mac)
Picture: Diagramming Software for Design UML Activity Diagrams

UML Use Case Diagram Example Registration System

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 types of user’s interactions with the system and is used at the registration and working with the database system.Registration System UML Use Case Diagram
Picture: UML Use Case Diagram Example Registration System
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