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:
ConceptDraw DIAGRAM can help you make professional diagrams quickly.
Picture: Best Software to Draw Diagrams
Related Solution:
Use ConceptDraw DIAGRAM diagramming and business graphics software to draw your own flowcharts of business processes.
Picture: How to Draw an Effective Flowchart
Related Solution:
In order to be successful, you have to promote your business on the market. One of the ways for planning this promotion is to create a social media DFD Flowchart which will contain all the details of your business strategy. Social media is a very influential tool, and it's a mistake to ignore it.
The following flowchart represents a best way to estimate social media posts, and gives a strategy of responses. This flowchart is designed in the format of cross-functional flowchart. With this format, we can divide the process into three distinct phases. This approach helps to generate well-considered and balanced response on social networks activities. Using ConceptDraw solution for Social Media Response, your reaction to social media posts will positively mirror the values and mission of your business.
Picture: How to Create a Social Media DFD Flowchart
Related Solution:
What is a computer network? This is a set of devices and systems that are connected to each other (logically or physically) and communicate with each other. This could include servers, computers, phones, routers, and so on. The size of this network can reach the size of the Internet, and can consist of only two devices connected by a cable.
This sample shows the connection scheme of the home WLAN equipment to the Internet.
Picture: Diagram of a Basic Computer Network. Computer Network Diagram Example
Related Solution:
Semiconductors are crystalline or amorphous solids with distinct electrical characteristics. They are of high resistance — higher than typical resistance materials, but still of much lower resistance than insulators. Their resistance decreases as their temperature increases, which is behavior opposite to that of a metal. Finally, their conducting properties may be altered in useful ways by the deliberate, controlled introduction of impurities into the crystal structure, which lowers its resistance but also permits the creation of semiconductor junctions between differently-doped regions of the extrinsic semiconductor crystal. The behavior of charge carriers which include electrons, ions and electron holes at these junctions is the basis of diodes, transistors and all modern electronics.
26 libraries of the Electrical Engineering Solution of ConceptDraw DIAGRAM make your electrical diagramming simple, efficient, and effective. You can simply and quickly drop the ready-to-use objects from libraries into your document to create the electrical diagram.
Picture: Electrical Symbols — Semiconductor
Related Solution:
UML Collaboration 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.
Rapid UML solution provides templates, examples and libraries of stencils for quick and easy drawing all the types of system and software engineering diagrams according to UML 2.4 and 1.2 notations.
Picture: UML Collaboration Diagram (UML2.0)
Related Solution:
Talking about companies, that have influenced the entire industry, we should mention Cisco and it’s influence on network design. Nowadays, this equipment has became a kind of standard, and Cisco icons, shapes, stencils, symbols and design elements are easily recognized among others. You can use these icons to develop a network diagram of any complexity.
When dealing with creating a pack of network documentation, system administrator often have to depict a network containing a network equipment of such a well-known manufacturer as Cisco. As Cisco has developed its own production standard icons that are strongly recommended to use in Cisco network diagrams. The best way to draw Cisco Network diagram Cisco certified icons is using ConceptDraw solution for Cisco Network Diagrams. Using Cisco symbols library provided by this solution allows system administrator, or network architect to design a prototype of a new network or document an existing one.
Picture: Cisco Network Design. Cisco icons, shapes, stencils, symbols and design elements
Related Solution:
