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:
If your company is in chaos in clutter and no one understands their rights and responsibilities, maybe it's time to change that. One of the ways to put the company in order is to draw an organization chart that would reflect the structure and show the relationships among departments and positions. This is a very useful and easy to understand scheme.
This is example of the one of the most typical kind of organizational chart. It depicts an organizational structure of the hierarchical type. Its construction is similarv to pyramid. The single main position on the top - in this case, the mayor's position followed by sub-levels of authority in his command. Each position in the pyramid reports only to his supervisor, and takes only a report of direct subordinates. Such scheme limits the number of communications. This organizational structure is effectively used in public organizations. Also it is suitable for any organization with the need for multiple levels of middle managers. The ability to create organizational charts of different types is supplied with ConceptDraw Ogrcharts solutions.
Picture: How to Draw an Organizational Chart
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There are a lot of structured analysis and design technique methodologies used to describe systems and data sources. To visualize data structures, data flow diagrams can be used for various purposes in the area of software engineering. Nowadays these diagrams are also used in the area of business analysis and information system analysis.
This data flow diagram depicts an account processing system of a typical account department of a small manufacturing enterprise. It shows the data transmission through the order processing to shipping verification. This data flow diagram was created according to standard of Yourdon and Coad notation. The vector graphic objects of Yourdon/Coad notation symbols was delivered by ConceptDraw Data Flow Diagrams solution. The current DFD can be employed as an example of a business process model, representing the set of business events and interactions commonly engaged in a accounts receivable process.
Picture: Data Flow Diagrams
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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
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The best bar chart software ever is ConceptDraw. ConceptDraw bar chart software provides an interactive bar charting tool and complete set of predesigned bar chart objects.
Picture: Bar Chart Software
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Picture: Exam Preparation Mind Map
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Planning a computer network can be a challenge for a junior specialist. However, knowing how to draw a computer network diagrams isn’t a rocket science anymore. There are a lot of special software for creating such diagrams with predesigned templates and examples.
The core for Network Fault Tolerance System presented here, is the equipment of Cisco. You can see here the certified Cisco equipment icons. Generally, ConceptDraw DIAGRAM libraries contain more than half of a thousand objects representing the standardized images of Cisco equipment. ConceptDraw solution for network diagramming is a great network diagramming tool for any level skills - from students to network guru.
Picture: How to Draw a Computer Network Diagrams
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UML Activity Diagram illustrate the business and operational step-by-step workflow of components in a system and shows the overall flow of control.
Picture: UML Activity Diagram. Design Elements
ConceptDraw DIAGRAM extended with the Rapid UML solution is perfect for drawing professional UML diagrams.
Picture: How to create a UML Diagram
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UML Communication Diagram depicts the interactions between objects or parts in terms of sequenced messages and describes both the static structure and dynamic behavior of a system.
Picture: Diagramming Software for Design UML Communication Diagrams
UML Collaboration Diagram Example Illustration. This sample was created in ConceptDraw DIAGRAM diagramming and vector drawing software using the UML Collaboration Diagram library of the Rapid UML Solution from the Software Development area of ConceptDraw Solution Park.
This sample shows the creation process of the contact list and can be used at the staff training and staff working, at the attraction process the new clients.
Picture: UML Collaboration Diagram Example Illustration
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