UML Diagrams with ConceptDraw DIAGRAM
UML (Unified Modeling Language) is a general-purpose modeling language used to represent the structure of complex software in a visual form, and employed in software engineering. UML diagrams are also efficient for documenting complex computer systems and software. Such visual models facilitate communication between the customer, system analysts and programmers, who write the source code. In addition, it's much easier for new programmers to understand the source code when a detailed UML diagram of it is available. Previously, when a programmer resigned a part of his work was gone with him because the code-creating process took place exclusively in his head. Now a newcomer can understand and get familiar with someone else's code without much trouble.
Programming languages may use operations and methods which are basically same, though vary by names and graphical notations. The UML language defines standards not only for operations and methods of programming languages, but also for their terminology.
So, using UML diagrams for visual modeling will help you to improve the final software products, simplify the process of its creation and meet the deadlines.

ConceptDraw DIAGRAM is a professional software product designed for creating detailed UML diagrams. A large number of libraries with ready-made objects for UML diagrams and task-oriented templates let you create UML diagrams of any complexity without effort.

To draw a diagram, just drag the required objects from the corresponding library onto the document page, then connect them with connectors appropriate for diagrams of this type.
There are 8 types of UML diagrams:
Use case diagram:
Diagrams of this type represent a list of operations performed by the system. Such diagrams are also called functional diagrams, as the list of the system's functions is created based on them, in accordance with the specified requirements.
Use case diagrams are used to describe business processes in automated applications and to define requirement for software to be developed. They depict objects from the system and application domain as well as the tasks performed by them.

Pic.1. UML use case diagram
To draw diagrams of this type, use the UML Use Case Diagram library in ConceptDraw DIAGRAM
Deployment diagram:
UML diagrams of this type serve to analyse the hardware used in system implementations, interaction between the processor and other components. As a rule, such diagrams are used in the beginning of designing to determine the hardware configuration of the system.

Pic.2. UML deployment diagram
Use the UML Deployment Diagram library to create such diagrams in ConceptDraw DIAGRAM
Statechart diagram:
Statechart diagrams serve to model possible states of the objects in the system. They also depict the sequence of actions required for transition between the states.

Pic.3. UML statechart diagram
Use the UML Statechart Diagram library to create such diagrams in ConceptDraw DIAGRAM
Activity diagram:
Same as Statechart diagrams, such diagrams show the states of objects in the system. The difference is that they can also depict forks for transitions from one state to another. These diagrams can be used to describe behavior algorithms of objects. You may also use them to create flow charts.

Pic.4. UML activity diagram
In ConceptDraw DIAGRAM such diagrams are represented in the UML Activity Diagram library.
Sequence diagram:
A type of interaction diagram. Sequence diagrams describe a sequence of interactions between objects.

Pic.5. UML sequence diagram
To draw such a diagram, use the UML Sequence Diagram library.
Collaboration diagram:
A collaboration diagram is also a type of interaction diagram, but unlike sequence diagrams these diagrams instead of the sequence of interactions between objects describe all variants of such interactions, regardless the sequence.

Pic.6. UML collaboration diagram
Class diagram:
They help to create graphical logical models of a system, further used to create the source code for the classes represented on the diagram.
UML class diagrams describe relationship between classes and interfaces. We recommend to create class diagrams using the Booch OOD template from the ConceptDraw STORE.

Pic.7. UML class diagram
Component diagram:
On diagrams of this type, also known as module diagrams, classes and objects are distributed by components or modules. This is very convenient for designing large systems which may count hundreds of components.

Pic.8. UML component diagram
Use the UML Component Diagram library for drawing diagrams of this type.
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.
Pic.9. Rapid UML Solution in ConceptDraw STORE
TEN RELATED HOW TO's:
Is it possible to develop a diagram as quickly as the ideas come to you? The innovative ConceptDraw Arrows10 Technology included in ConceptDraw DIAGRAM is a powerful drawing tool that changes the way diagrams are produced.
While making the drawing process easier and faster.
Picture: How to draw a Cross-Functional Flowchart
Related Solution:
You need design a Bank UML Diagram? Now, thanks to the ConceptDraw DIAGRAM diagramming and vector drawing software extended with ATM UML Diagrams Solution from the Software Development Area, you can design without efforts any type of Bank UML Diagram you want - Class, Activity, Communication, Component, Composite structure, Deployment, Interaction overview, Object, Package, Profile, Sequence, State machine, Timing, Use case.
Picture: Bank UML Diagram
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Physical network represents the computer network topology that includes the computer devices, location and cable installation. Physical network includes the actual nodes, segments and hosts.
This example was created in ConceptDraw DIAGRAM using the Computer and Networks Area of ConceptDraw Solution Park and shows the Physical star network.
Picture: Physical network. Computer and Network Examples
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UML Communication diagramming software with rich examples and template. ConceptDraw is ideal for software designers and software developers who need to draw UML Communication Diagrams.
Picture: Communication Diagram UML2.0 / Collaboration UML1.x
Use Case Diagrams technology. IDEF3 Standard is intended for description and further analysis of technological processes of an enterprise. Using IDEF3 standard it is possible to examine and model scenarios of technological processes.
Picture: IDEF3 Standard
Using diagrams, you can visualize the flow of the information or build a detailed data structure. There's no need to have a degree in software and database design with ConceptDraw DIAGRAM , because this software has all the tools needed in developing models and diagrams. Project planning, designing and prototyping was never so easy.
This UML diagrams can be used to visualize a model of the data base development process. A UML diagram shows a graphical view of a structure of software system: components and relationships.
Using Unified Modeling Language helps to depict logical and physical elements of a data base, visually represent requirements and sub-systems. UML diagrams allows developers to organize and predict critical issues, as well as collaborate data base information.
Picture: Software and Database Design with ConceptDraw DIAGRAM
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The activity of any organization is more or less branchy network of processes. The description of these processes is a hard technical task which requires definite methodology and standards.
According to the IDEF0 standard any process can be described in the form of a block (Activity Box) which has inputs and outputs. The process consists in transformation of inputs into outputs under the influence of the management and in the presence of necessary resources. Outputs of the given process later on can be either inputs for the next process or resources, or management means.
Picture: IDEF0 standard with ConceptDraw DIAGRAM
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The vector stencils library SSADM from the solution Systems engineering contains specific symbols of SSADM diagrams for ConceptDraw DIAGRAM software.
Picture: SSADM Diagram
Architectural drawing allows to show the location of a building or ensemble of buildings on the ground, indicating the cardinal points. For centuries, people had been studying architecture in universities to learn how to draw building plans and now everyone can do it easily just using appropriate software. While developing the building plan, its graphic part, you can display the part of the floor or the entire floor of a building with an indication of the exact location of the drawn premise.
Small-sized apartments does not restrict the advanced interior design opportunities. Here is a detailed and precise floor plan of a pretty small apartment. A furniture objects are added to show possible interior of this home. This plan can be used to help somebody with a floor layout and furniture arrangement. Having this floor plan in a pocket while shopping would be useful to check if there is enough rooms for a new furniture.
Picture: How To Draw Building Plans
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Garrett IA diagrams are used at development of Internet-resources, in particulars at projecting of interactions of web-resource elements. The diagram of information architecture of the web resource which is constructed correctly with necessary details presents to developers the resource in comprehensible and visual way.
Picture: Garrett IA Diagrams with ConceptDraw DIAGRAM