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:
UML Class Diagram is a type of Structure Diagrams that shows the classes of a system, attributes, operations, and the relationships between them.
UML Package Diagram is a type of Structure Diagrams that represents the packages of the model and dependencies between them.
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.
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.
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.
UML Activity Diagram is a type of Behavior Diagrams that graphically describes decomposition of the some activity on the components.
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.
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.
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.
Example 1. UML Class Diagram. AbstractFactory pattern
All libraries for creating UML diagrams are available inside the ConceptDraw DIAGRAM Templates and samples are located in the Rapid UML section of ConceptDraw STORE.
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.
There are many ways to describe a database structure. One of the most usual is to draw an entity relationship diagram (ERD) using a Crow’s Foot notation to represent database elements. If you don’t want to draw it on paper, you should use an appropriate software.
An entity-relationship (ER) diagram is used to show the structure of a business database. ERD represents data as objects (entities) that are connected with standard relationships symbols which Illustrate an association between entities. ERD, there is a wide range of ERD notations used by data bases architects for reflecting the relationships between the data entities. According to the crow’s foot notation relationships are drawn as single labeled lines designating a certain kinds of relationship. Crow foot notation is a most frequently used ERD standard, because of improved readability of diagrams, with a more accurate use of space on the page.
Picture: Entity Relationship Diagram - ERD - Software for Design Crows Foot ER Diagrams
Systems Modeling Language (SysML) is a general-purpose modeling language for systems engineering applications.
ConceptDraw DIAGRAM diagramming and vector drawing software was extended with SysML Solution from the Software Development Area of ConceptDraw Solution Park specially to help systems engineers design various model systems with SysML.
Competitor analysis is a first and obligatory step in elaboration the proper corporate marketing strategy and creating sustainable competitive advantage. Use powerful opportunities of numerous solutions from ConceptDraw Solution Park for designing illustrative diagrams, charts, matrices which are necessary for effective competitor analysis.
UML Diagram Estate Agency. This sample was created in ConceptDraw DIAGRAM 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 estate agency and is used by the estate agencies, building companies, at the trainings of the estate agencies, for understanding the working processes of the estate agencies.
Picture: UML Use Case Diagram Example - Estate Agency
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.
Process Flow Chart is a visual diagram which shows the processes and relationships between the major components in a system, and uses for this the special process flow chart symbols: special shapes to represent different types of actions and process steps, lines and arrows to represent relationships and sequence of steps. It often named process flow diagram, it use colored flowchart symbols.
It is incredibly convenient to use the ConceptDraw DIAGRAM software extended with Flowcharts Solution from the "Diagrams" Area of ConceptDraw Solution Park for designing professional looking Process Flow Charts.
This sample was created on the Mac in ConceptDraw DIAGRAM diagramming and vector drawing software using the UML State Machine Diagram library of the Rapid UML Solution from the Software Development area of ConceptDraw Solution Park.