Entity Relationship Diagram Software Engineering
Entity Relationship Diagram (aka ERD, ER Diagram, E-R Diagram) is a well-tried software engineering tool for data modeling, system design and illustrating the logical structure of databases. Introduced by Peter Chen the ER modeling technique is now successfully used in software development, when creating conceptual data model of an information system.
There are used three basic elements for ERDs construction: entities, attributes, relationships. Chen's notation for ERD assumes the use of rectangles to represent entities and diamonds to represent relationships between first-class objects. Another popular notation for ER diagrams is Crow's foot notation.
Professional ERD drawing is an essential software engineering method for database modeling. ConceptDraw DIAGRAM as a powerful Entity Relationship Diagram software engineering offers the tools of Entity-Relationship Diagram (ERD) solution from Software Development area of ConceptDraw Solution Park.
Example 1. Entity Relationship Diagram Software Engineering (Mac OS X, Microsoft Windows)
Use ConceptDraw DIAGRAM enhanced with Entity-Relationship Diagram (ERD) solution to draw Entity Relationship Diagrams using Chen's or crow's foot notations. This solution contains a lot of useful drawing tools, 2 libraries with 45 vector design elements for both notations, and amazing collection of ready ERD samples, examples and templates for quick start.
Example 2. Entity relationship diagram (ERD), Chen's notation
The Entity-Relationship Diagram (ERD) solution for ConceptDraw Solution Park is an effective help in description a database using the Entity-Relationship model. Make sure this right now!
Example 3. Entity Relationship Model Diagram, Crow's Foot notation
The following features make ConceptDraw DIAGRAM the best Entity Relationship Diagram Software:
- You don't need to be an artist to draw professional looking diagrams in a few minutes.
- Large quantity of ready-to-use vector objects makes your drawing diagrams quick and easy.
- Great number of predesigned templates and samples give you the good start for your own diagrams.
- ConceptDraw DIAGRAM provides you the possibility to use the grid, rules and guides. You can easily rotate, group, align, arrange the objects, use different fonts and colors to make your diagram exceptionally looking.
- All ConceptDraw DIAGRAM documents are vector graphic files and are available for reviewing, modifying, and converting to a variety of formats: image, HTML, PDF file, MS
PowerPoint Presentation, Adobe Flash, MS Visio.
- Using ConceptDraw STORE you can navigate through ConceptDraw Solution Park, managing downloads and updates. You can access libraries, templates and
samples directly from the ConceptDraw STORE.
- If you have any questions, our free of charge support is always ready to come to your aid.
TEN RELATED HOW TO's:
The vector stencils library Chen ERD from the solution Entity-Relationship Diagrams (ERD) contains specific symbols of the Chen ERD notation including entity symbols and relationship symbols for ConceptDraw DIAGRAM diagramming and vector drawing software. The Entity-Relationship Diagrams (ERD) solution is contained in the Software Development area of ConceptDraw Solution Park.
Picture: Chen ERD Diagram
The vector stencils library Crow's Foot Notation from the solution Entity-Relationship Diagrams (ERD) contains specific symbols of the Crow's foot notation such as relationship symbols and entity symbols for ConceptDraw DIAGRAM diagramming and vector drawing software. The Entity-Relationship Diagrams (ERD) solution is contained in the Software Development area of ConceptDraw Solution Park.
Picture: Martin ERD Diagram
Event-Driven Process chain Diagrams for improvement throughout an organisation. Best software for Process Flow Diagram. The Event-driven Process Chain (EPC) Diagrams allows managers to plan processes and resources.
Picture: Business process Flow Chart — Event-Driven Process chain (EPC) diagrams
This sample was created in ConceptDraw DIAGRAM 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.
Picture: UML Class Diagram Generalization ExampleUML Diagrams
Systems engineering is an interdisciplinary field of engineering that focuses on how to design and manage complex engineering systems over their life cycles.
ConceptDraw DIAGRAM supplied with SysML Solution from the Software Development Area of ConceptDraw Solution Park is a powerful and effective systems engineering software.
Picture: Systems Engineering
While studying, many of the students encounter the necessity of remaking class projects, over and over. To facilitate this process you can use special electrical and telecom plan software, which helps altering projects in several clicks. Using templates will fasten your work, and you will have more free time.
This sample represents an electrical and telecommunication floor plan. Electrical and telecom floor plans contain a floor plan , on which imposed the layout of electrical, and telecommunications equipment. They shows electrical and telecom details regarding the current floor of a building: lightening, fixtures, wires, outlets, circuit panels, etc. Using of standart notation of electrical and telecommunication symbols makes the plan understandable for engineers, architects, constructors, specialist in electricity and telecommunications.
Picture: Electrical and Telecom Plan Software
Flow chart is a diagrammatic representation of an algorithm and essential part of planning the system. Flow charts are widely used in technical analysis and programming for easy writing programs and explaining them to others. So, one of the most popular type of flow charts is Technical Flow Chart.
Technical Flow Chart can be drawn by pencil on the paper, but it will be easier to use for designing a special software. ConceptDraw DIAGRAM diagramming and vector drawing software extended with Flowcharts Solution from the "Diagrams" Area of ConceptDraw Solution Park will be useful for this goal.
Picture: Technical Flow Chart
Working with disordered network data can be quite exhausting. Sometimes it's necessary to find a network diagramming software to design Cisco network diagrams that would be easy to use and would be able to export diagrams to various graphic formats. ConceptDraw DIAGRAM is a great diagramming tool that is able to perform all these tasks easily.
This vector library represents a set of 26 objects depicting the manufacturer - standard equipment of Cisco switches and hubs. This is only a small part of the vector graphic objects of Cisco equipment that comprise the Cisco Network Diagrams solution. In full the ConceptDraw Cisco Network Diagrams solution has 15 libraries, containing more then 500 objects to create a Cisco network diagrams. They can be used by IT specialists and corporative IT divisions, system and network administrators to make the visual documentation of Cisco networks topology.
Picture: Network Diagramming Software for Design. Cisco Network Diagrams
UML for Bank - This sample was created in ConceptDraw DIAGRAM 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.
Picture: UML for Bank
The Entity-Relationship Diagram (ERD) solution from ConceptDraw Solution Park extends ConceptDraw DIAGRAM vector graphics and diagramming software with the ability to describe a database using the Entity-Relationship (Chen) model. Use it for design your ERDs and verify that ConceptDraw DIAGRAM offers the best ERD diagrams software tools for design element Chen notation.
Picture: Entity Relationship Diagram - ERD - Software for Design Chen ER Diagrams