Made with
ConceptDraw
DIAGRAM 18

Entity-Relationship Diagram

Entity–Relationship modeling was developed by Peter Chen in 1976 for database design. Usually ER Model is constructed as abstract data model which defines information structure and data.

The Entity-Relationship Diagram (ERD) is the world-known way to show the logical structure of databases in visual manner. It gives an overall plan of how the database will look and is constructed of graphical elements, mainly of rectangles (representing entities and their properties) and lines (representing relationships and relationships of entities with each other). All relationships are divided into three categories: one-to-one (1:1), one-to-many (1:N), and many-to-many (M:N). Each entity has properties or characteristics that are implemented in the form of attributes that describe each entity instance.

The best software tool for drawing Entity-Relationship Diagram is ConceptDraw DIAGRAM ector 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.

Entity-Relationship Diagram *

Example 1. Entity-Relationship Diagram (ERD) - Students and Teachers

Entity-Relationship Diagram (ERD) solution includes vector icons advocated by popular Chen's or Crow's foot notations that can be used when describing an enterprise database. All they are offered by the libraries: ERD Chen's Notation and ERD Crow' Foot Notation.

ERD Libraries

Example 2. ERD Libraries

Develop ER models and ER diagrams using these predesigned vector objects, or start with one of predesigned ERD templates from the Entity-Relationship Diagram solution. Two professionally designed ERD templates (Chen and Crow's Foot) are available at ConceptDraw STORE.

ConceptDraw STORE - ERD Templates

Example 3. ConceptDraw STORE - ERD Templates

The vector graphic diagrams produced using the Entity-Relationship Diagram (ERD) solution and also samples included to it can be successfully used in whitepapers, presentations, datasheets, posters, or any technical materials.

Entity-Relationship Diagram

Example 4. Entity-Relationship Diagram

The Entity-Relationship Diagram samples you see on this page were created in ConceptDraw DIAGRAM diagramming and vector drawing software using the Entity-Relationship Diagram (ERD) solution from ConceptDraw Solution Park. An experienced user spent 5 minutes creating each of these diagrams.

Use ConceptDraw DIAGRAM enhanced with Entity-Relationship Diagram (ERD) solution to draw quick and easy your own Entity-Relationship Diagram using Chen's or 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.






TEN RELATED HOW TO's:
Use the set of special professionally developed swim lane flowchart symbols - single, multiple, vertical and horizontal lanes from the Swimlanes and Swimlanes BPMN 1.2 libraries from the Business Process Diagram solution, the Swim Lanes library from the Business Process Mapping solution as the perfect basis for your Swim Lane Flowcharts of processes, algorithms and procedures.Swim Lane Flowchart Symbols *
Picture: Swim Lane Flowchart Symbols
Related Solution:
Business Process Modeling Notation (BPMN) is a set of standard symbols that allow you to create a graphical view of a business process. The symbols were developed to help users develop standard, unified structure of processes, and any messages shared between these processes.How to Draw Business Process Diagrams <br>with RapidDraw Interface *
Picture: How to Draw Business Process Diagrams with RapidDraw Interface
What is Cloud Computing? The Cloud computing is a widely used and highly demanded utility in the modern world thanks to its high computing power, performance, scalability and accessibility, and at the same time low cost of services. The ConceptDraw DIAGRAM diagramming and vector drawing software provides an easy and effective Cloud Computing Diagrams solution from the Computers and Network area of ConceptDraw Solution Park for making professional looking Cloud Computing and Cloud Computing Architecture Diagrams.What is Cloud Computing *
Picture: What is Cloud Computing
Related Solution:
The Cloud Computing is the use of the software and hardware that includes the great number of computers connected over the communication network such as the Internet. The Cloud name comes from the usage the cloud symbol on the system diagrams as the abstraction for the complex network infrastructure. This term is used as a marketing metaphor for the Internet. This example was created in ConceptDraw DIAGRAM using the Computer and Networks Area of ConceptDraw Solution Park and shows the Cloud Computing.Cloud Computing *
Picture: Cloud Computing
Related Solution:
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 software.Chen ERD Diagram
Picture: Chen ERD Diagram
Related Solution:
ConceptDraw DIAGRAM is a professional software for creating great looking flowcharts. The samples included in this set of software allows users to draw any type of flowchart.Flowchart Process Example *
Picture: Flowchart Process Example
Related Solution:
Stakeholder management is a critical component to the successful delivery of any project, programme or activity. ConceptDraw DIAGRAM is a powerful diagramming and vector drawing software. Now, thanks to the Stakeholder Onion Diagrams Solution included to the Management Area of ConceptDraw Solution Park, ConceptDraw DIAGRAM became also unique stakeholder management system design software.Stakeholder Management System using Onion Diagram
Picture: Stakeholder Management System using Onion Diagram
Related Solution:
Another stencil library that is included in the Computer Network Diagrams solution is the “Computer Network” one. It includes such design symbols as the representation of the Desktop computer, HP desktop computer, Workstation, HP workstation, iMac, HP laptop, Fujitsu laptop, MacBook, MacBook Air, MacBook Pro, Computer monitor, Apple Thunderbolt Display, Mac Pro, iPad mini, iPhone 4, iPhone 5, iPhone / iPod Touch, iPod Classic, PDA, Smartphone, Mobile Phone, Mainframe, City, Satellite dish, Radio tower, Satellite, Cloud, Data store, Compact disk, Curved bus, Comm-disk, Token-ring, FDDI Ring, Star, Ethernet and bus.Active Directory Network. Computer and Network Examples *
Picture: Active Directory Network. Computer and Network Examples
Related Solution:
Create Quality Engineering Diagrams (value stream maps) - for value stream analysis and value stream management, material and information flow mapping, using our quick start templates included with ConceptDraw.Quality Engineering Diagrams *
Picture: Quality Engineering Diagrams
Related Solution:
When it comes to system construction, a class diagram is the most widely used diagram. UML Class Diagrams is a type of static structure diagram that is used for general conceptual modeling of the systematics of the application. Such a diagram would illustrate the object-oriented view of a system. The object orientation of a system is indicated by a class diagram. It describes the structure of a system by showing the general issues,classes of a system, attributes, operations, interfaces, inheritance, and the relationships between them.UML Class Diagram Notation *
Picture: UML Class Diagram Notation
Related Solution:
ConceptDraw
DIAGRAM 18