Entity Relationship Diagram Examples
Crow’s Foot and Chen's notation examples
Creating the entity-relationship (ER) model by visually representing the structure of some database, mainly the business one, which data equates to its entities (or objects) that are connected by relationships showing requirements and dependencies, you need proper software to provide you with the symbols necessary in this case.
ConceptDraw DIAGRAM мector drawing and diagramming software allows you to make any of needed models, plans, charts, diagrams with help of our application STORE where lots of layouts can be found as well as samples and templates of the flowcharts depending on the business sphere you work in and requirements you have. You can also find examples of ERD in Solutions here on this site in order to make it look really smart. Making entity-relationship diagram based on the Chen ERD notation is simple now having ConceptDraw DIAGRAM and you can check it yourself once you download and use it. Advice your colleagues and your friends, business partners, in order to simplify their lives as well as yours making the charts looking professional and simply sophisticated. Because we guarantee the quality of our great software developed to please everyone who needs this product in their work.
Example 1. ERD Example — Chen Diagram
This sample diagram is one of ER Diagram examples included to Entity-Relationship Diagram (ERD) solution. It shows the type of icons and graphics you can use to develop a model of a database of arbitrary complexity according to Chen's notation.
Example 2. ERD Example — Crows's Foot diagram
This sample diagram was created using the drawing tools of Entity-Relationship Diagram (ERD) solution and shows the type of icons and graphics you can use to develop a model of a database of arbitrary complexity using Crow's Foot notation.
Example 3. Entity Relationship Model Diagram — Crows's Foot notation
This sample demonstrates an Entity-relationship model diagram. Highlight the boxes in the ERD diagram with bright colors to make it attractive and easy to remember.
Example 4. Crows's Foot ERD notation — Students and Teachers
This Entity-Relationship Diagram shows the relationships between the Students and Teachers entities. Drawing all entities of ER-diagram in one color spectrum, highlighting the headers, you will make your diagram look stylish and then successfully use it in different conferences, discussions, publications.
Example 5. Chen ERD notation — WordPress File reference
This ERD example shows an Entity-Relationship Diagram of a WordPress file reference using Chen’s Notation, which represents the entities as rectangles and attributes as ovals. Creating similar Entity Relationship Diagram examples and diagrams in ConceptDraw DIAGRAM will take just minutes.
Example 6. Chen ERD Template
This template from Entity Relationship Diagram (ERD) solution contains special objects and settings for creating entity relationship diagrams based on the Chen ERD notation.
How to Create an ERD Diagram
The ability to describe a database using the
Open ConceptDraw STORE, check the ERD solution and click “Install”.
This solution extends ConceptDraw DIAGRAM with 2 libraries that contains 45 objects advocated by Chen's and Crow’s Foot notations that can be used when describing a database.
Pic. 1. ERD symbols - Chen's notation
Pic. 2. ERD symbols - Crow's Foot notation
- From the ConceptDraw STORE open the Chen's ERD, or the Crow's Foot ERD template from the ERD section.
- Add objects to the diagram by dragging them from the Chen's ERD, or the Crow's Fot ERD library to the document page.
- Use Clone tool
(Mac),
(Win) to quickly add copies of the selected object. - Select the Smart Connector tool
. To connect elements using this tool, drag the connector from one connect dot to another. - Use Line, Fill, Shadow and Text tools to format diagram objects.
Example 6. Entity Relationship Diagram Examples
The 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 model.
The ERD solution provides entity relationship diagram examples, templates and library of vector stencils.
Example 7. Entity Relationship Diagram solution
Entity Relationship Diagram examples from ERD solution for ConceptDraw DIAGRAM can be used as a start point for professional ERD drawing. Entity Relationship Diagram examples can be simply modified to illustrate the logical structure of exact database.
NINE RELATED HOW TO's:
E-R Diagrams →
Complexity of databases increases day by day, due to this the Entity relationship models and E-R diagrams become more and more popular, and now are an important part of database design. E-R diagrams created at ConceptDraw DIAGRAM allow visually and graphically represent structure and design of databases.
Chen ERD Diagram →
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.
Entity Relationship Diagram Software for Mac →
ER-modeling nowadays is a very popular approach for database design. If you are tired of looking for a good entity relationship diagram Software for Mac, then your search is almost over. ConceptDraw DIAGRAM is a great tool for creating diagrams of any complexity with tons of editable samples and templates. This diagram represents the vector library of the Chen’s and Crow’s Foot notation icons for drawing ERD (entity-relationships diagram). ConceptDraw Entity Relationship Diagram solution delivers the ability to visualize databases structure on both Mac and PC. The "bricks" entity-relationships models are the entity, and the relation. An entity is represented by a rectangle comprising the entity name. It means an object, information about which should be available and stored. A relation is intended to show a relations between two entities. There are several types of relations between entities. To show there are a number of different symbols for the types of relationships.
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Network diagrams with ConceptDraw DIAGRAM →
Of course it is possible to keep network records in text documents, but it is very difficult to use them later. A more sound way to keep such documentation is to create a network diagram that might represent either logical network structure or physical. These diagrams are easy to understand and you will thank yourself later. There is a physical network diagram. It is a tool to represent, maintain and analysis of network equipment and interconnections. Network diagram depicts the actual network information in the attractive clear graphic form. One can learn here the LAN cable length, telecommunication type and carrying capacity. The diagram depicts servers, IP address and domain name as well. Also it shows location of hubs, switches, modems, routers, and other network equipment. The sets of special symbols and images delivered with ConceptDraw Network Diagrams solution are used to show network components. Symbols have a standard view. Therefore, various specialists can read the network diagram without any discrepancies.
Data Flow Diagram →
There are many ways to define the flow of information within a system. Structured-systems analysis method often uses data flow diagrams to show data flow, data storages and data processing visualization. These diagrams are easy to develop and quite useful. Here is a dataflow diagram presenting an example of the manufacturing process flow. The oval process shapes represent a process that controls data within the current system. The process may produce data or make some action based on data. Data flows are represented by lines. They show the movement of information through the system. The direction of the data flow is depicted by the arrow. The external entities are shown by rectangles. They represent the external entities interacting with the system. The data store objects (unclosed rectangles) are used to show data bases participating in a process flow.
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Fishbone, Ishikawa or Cause and Effect diagram helps understand the reasons of completed or potential actions by structuring their causes in smaller categories. Also, one can use it to see how the contributing factors are related to each other. In everyday company routine, a Cause and Effect diagram is helpful with a number of regular activities like brainstorming, project management, and problem solving. How to Construct a Fishbone Diagram? Construction a Fishbone diagram in professional diagramming software ConceptDraw DIAGRAM is more easy than you think. Just use the predesigned vector elements from the Fishbone Diagrams library for Fishbone Diagrams solution or one of plenty Fishbone templates and examples, and you will get a Cause and Effect diagram in minutes.