Entity Relationship Diagram Symbols

Creating an entity-relationship (ER) model is to visually represent the structure of a business database, where data equates to entities (or objects) that are linked by defined relationships expressing dependencies and requirements. By nature it is an abstract visualization, the first step in the design process towards creating a logical and functional database.
ERD symbols used for professional ERD drawing are collected in libraries from the Entity-Relationship Diagram (ERD) solution for ConceptDraw PRO.

ERD Symbols and Meanings

Crow's foot notation is used in Barker's Notation, Structured Systems Analysis and Design Method (SSADM) and information engineering. Crow's foot diagrams represent entities as boxes, and relationships as lines between the boxes. Different shapes at the ends of these lines represent the cardinality of the relationship.
The Chen's ERD notation is still used and is considered to present a more detailed way of representing entities and relationships.
To create an ERD, software engineers mainly turn to dedicated drawing software, which contain the full notation resources for their specific database design - ERD symbols and meanings. CS Odessa has released an all-inclusive Entity-Relationship Diagram (ERD) solution for their powerful drawing program, ConceptDraw PRO.

Components of ER Diagram

ConceptDraw gives the ability to draw ER diagram (ERD) for visual describing database using the entity relationship symbols, work flow shapes, entity relationship stencils. Entity-Relationship model making possibility to describe a database using the components of ER Diagram in which in the tables data can be the point to data in other tables - for instance, your entry in the database could point to several entries.

UML Use Case Diagram Example Social Networking Sites Project

UML Diagrams Social Networking Sites Project. This sample was created in ConceptDraw PRO diagramming and vector drawing software using the UML Use Case Diagram library of the Rapid UML Solution from the Software Development area of ConceptDraw Solution Park.
This sample shows the Facebook Socio-health system and is used at the projection and creating of the social networking sites.

Network Security Model

Creation of well thought-out network security model will effectively help you in realization your network's security. ConceptDraw PRO diagramming and vector drawing software extended with Network Security Diagrams Solution from the Computer and Networks Area of ConceptDraw Solution Park lets fast and easy design all variety of network security models: Open network security model, Closed network security model, Restrictive network access model.

How To Create Restaurant Floor Plan in Minutes

Restaurant Floor Plans solution for ConceptDraw PRO has 49 extensive restaurant symbol libraries that contains 1495 objects of building plan elements; many examples and templates for drawing floor plans and restaurant layouts.
It helps make a layout for a restaurant — restaurant floor plans, cafe floor plans, bar area, floor plan of a fast food restaurant, restaurant furniture layout, etc.
ConceptDraw PRO — great restaurant floor planner. You do not need to be an artist to create great-looking restaurant floor plans in minutes.

Star Network Topology

The Computer and Networks solution from Computer and Networks area of ConceptDraw Solution Park provides examples, templates and vector stencils library with symbols of local area network (LAN) and wireless LAN (WLAN) equipment.
Use it to draw the physical and logical network topology diagrams for wired and wireless computer communication networks.

Sales Process Map

You need create a Sales Process Map? Use the ConceptDraw PRO software which is ideal for the sales process management, marketing and engineering thanks to the powerful Sales Flowcharts solution from the Marketing area of ConceptDraw Solution Park.

How to Prepare Learning Presentations for Training

Interactive tool helps you find the appropriate response to social media mentions quickly.