Entity Relationship Diagram - ERD - Software for Design
Chen ER Diagrams
One of the methods actively used in a real design of database structure is semantic modeling, which is a modeling of the data structure, based on the meaning of these data. Various types of ER diagrams are used as the tool of semantic modeling.
The first version of the entity-relationship model was proposed in 1976 by Peter Chen. In the future, many authors have developed their own versions of these models (Martin notation, IDEF1X notation, Barker notation, etc.). Irrespective from the notation, all versions of Entity-relationship diagrams are based on the same idea - image is always more visual than text description. ER diagrams use a graphical representation of the entity domain, their properties (attributes), and the relationships between entities.
The Entity-Relationship Diagram (ERD) solution from ConceptDraw Solution Park extends ConceptDraw DIAGRAM ector 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.
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Example 1. Entity Relationship Diagram Software
Design Elements — Chen (Windows, Macintosh).
Entity-Relationship Diagram (ERD) solution offers the ERD Chen's Notation library with variety of ERD symbols for Chen notation. Simply drag the predesigned ERD objects from the library, arrange them, type the text and title to get the excellent result – your own ER Diagram in minutes. It’s a fastest way of drawing, and the most important – you don’t need to be the painter for this.
Example 2. Entity-Relationship Diagram Solution in ConceptDraw STORE
You can also use the ready samples or templates offered by Entity-Relationship Diagram (ERD) solution in ConceptDraw STORE as the base for your own diagrams.
Example 3. ER Diagram, Chen Notation
The samples you see on this page were created in ConceptDraw DIAGRAM software in Mac OS X and Windows using the Entity-Relationship Diagram (ERD) solution and show the ER Diagrams created with Chen notation. An experienced user spent 10 minutes creating these samples.
Use the Entity-Relationship Diagram (ERD) Solution for ConceptDraw DIAGRAM to create quick and easy your own Entity-Relationship Diagrams using the Chen and Crow's Foot notations.
All source documents are vector graphic documents. They are available for reviewing, modifying, or converting to a variety of formats (PDF file, MS PowerPoint, MS Visio, and many other graphic formats) from the ConceptDraw STORE. The Entity-Relationship Diagram (ERD) Solution is available for all ConceptDraw DIAGRAM or later users.
NINE RELATED HOW TO's:
How to Draw ER Diagrams? With Entity-Relationship Diagram (ERD) solution from the Software Development Area for ConceptDraw Solution Park you are able to draw ER diagram with no problem. It includes 45 predesigned icons advocated by popular Chen's and Crow’s Foot notations that can be used when describing an enterprise database.
Picture: How to Draw ER Diagrams
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Data modelling will help you to study and analyze business processes in your organization for optimization and increase of effectiveness and production.
Picture: Data modeling with ConceptDraw DIAGRAM
An abstract representation is usually the first thing you will need while developing a database. To understand the ways that databases are structured, you should look through entity-relationship diagram examples and see the notations features and attributes. With an entity-relationship model you can describe a database of any complexity.
This Entity-relationship diagram is a tool for software developers. It enables every element of database to be managed, communicated and tested before release. This ERD was created using symbols advocated by Chen's notation. Because of a linguistic origin of the Chen’s notation, the boxes representing entities could be interpreted as nouns, and the relationships between them are in verb form, shown on a diagram as a diamond.
Picture: Entity Relationship Diagram Examples
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The world-best Entity Relationship Diagram software suitable for professional ERD drawing is ConceptDraw DIAGRAM software extended with the Entity-Relationship Diagram (ERD) solution. This solution contains all libraries, templates and samples you may need for professional ERD drawing.
Picture: Entity Relationship Diagram Software
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Website wireframe is a detailed view of design or its skeleton. It shows all the important elements of the final website, the main groups of contents, information structure, describes the user's interaction with interface and its estimated visualisation.
ConceptDraw DIAGRAM extended with Website Wireframe solution from the Software Development area is the best wireframing software. Using the wireframe tools, libraries of vector objects, template and examples which offers a Website Wireframe solution, you will easily design the websites wireframes of any complexity.
Picture: Wireframing
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As restaurant industry is growing rapidly nowadays, researches show that almost half of the adults have worked in a restaurant or a cafe. Moreover, many of them dream to start their own someday. Unfortunately, it takes a lot of time to write a business plan and to find a great location, although some know how to create a restaurant floor plan in minutes or how to plan budget effortlessly. Hiring employees can also cause a lot of headache, but this is crucial for further success, because every guest comes to restaurant for a good service and delicious food. It is also worth noting that restaurant concept is also important, because it defines target audience and influences the menu.
This diagram represents the floor plan of an ongoing sports-theme establishment - restaurant, cafe, or other food service. A number of widescreen monitors installed along the perimeter provide visitors the opportunity to follow the course of a match from anywhere in the dining room of restaurant or cafe. The most of sports fans believe that food and alcohol is a big part of any sports show. That is why the dining room takes the most space - almost 60% of the total establishment space. Nearly all sports fans consume beverages while watching sports - beer, soda or water at least. Thus, the restaurant floor plan designers added a large lavatory there. Moreover, project developers considered unnecessary the gender division of such delicate place - perhaps they guess that only men are watching football, or believe that alcohol will eliminate the most of gender differences.
Picture: How To Create Restaurant Floor Plan in Minutes
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Entity Relationship Diagram (ERD) is the world-known way to show the logical structure of databases in visual manner. The best software tool for drawing Entity-Relationship Diagram is ConceptDraw DIAGRAM vector graphics software with Entity-Relationship Diagram (ERD) solution from Software Development area which gives the ability to describe a database using the Entity-Relationship model. The vector graphic diagrams produced using this solution can be successfully used in whitepapers, presentations, datasheets, posters, or any technical materials.
Picture: Entity-Relationship Diagram
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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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Creating of Entity-Relationship Diagrams (ERDs) is a complex process that requires convenient, automated tools. ConceptDraw DIAGRAM diagramming and vector drawing software offers a powerful ER Diagram Tool - the Entity-Relationship Diagram (ERD) Solution from the Software Development Area.
Picture: ER Diagram Tool
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