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 DIAGRAM.

How to Build an Entity Relationship Diagram (ERD)

CAD Drawing Software for Making Mechanic Diagram and Electrical Diagram Architectural Designs

ConceptDraw DIAGRAM software for making mechanic and electrical diagrams for architectural design

CAD (Computer-aided design) software is used for improvement the quality of design and the productivity of the designer, for creating the database for manufacturing. Computer-aided design is used in many fields: in mechanical and industrial design, in designing electronic systems and electrical diagrams for architectural design, in automotive, aerospace, shipbuilding industries.

Create an Electrical Diagram

Mechanical Drawing Symbols

Mechanical Engineering solution — 8 libraries are available with 602 commonly used mechanical drawing symbols in Mechanical Engineering Solution, including libraries called Bearings with 59 elements of roller and ball bearings, shafts, gears, hooks, springs, spindles and keys; Dimensioning and Tolerancing with 45 elements; Fluid Power Equipment containing 113 elements of motors, pumps, air compressors, meters, cylinders, actuators and gauges; Fluid Power Valves containing 93 elements of pneumatic and hydraulic valves (directional control valves, flow control valves, pressure control valves) and electrohydraulic and electropneumatic valves; as well as many other sophisticated symbols and templates for your use.

How To use Electrical and Telecom Plan Software

When drawing Electrical and telecom plan, you need to display electrical circuit, schematics, electrical wiring, digital circuits and house electrical plans, etc. It shows the electrical devices location and the scheme of electric and telecom wiring clearly and concisely enough.

For easy start, use Electric and Telecom plan solution templates and samples which will be opened right with standard electrical symbols and icons library. Or create your own electrical and telecom diagrams. Try now to make sure how easy and neat drawing electrical and telecom plan could be with ConceptDraw DIAGRAM!

Use Electrical and Telecom Plan Software to develop the home electrical plan, residential electric plan, telecom wireless plan, and other electric visual and telecommunication floor plans for design and construction, including outlets, switches, and fixtures.

ConceptDraw DIAGRAM Compatibility with MS Visio

For those who are migrating from MS Visio to ConceptDraw DIAGRAM, or for those who have colleagues and clients who use Visio, ConceptDraw DIAGRAM is compatible with MS Visio.VSDX formatted files.VSDX is Visio’s open XML file format, and it can be easily imported and exported by ConceptDraw DIAGRAM.

Entity-Relationship Diagram (ERD)

An Entity-Relationship Diagram (ERD) is a visual presentation of entities and relationships. That type of diagrams is often used in the semi-structured or unstructured data in databases and information systems. At first glance ERD is similar to a flowch

Computer Network Diagrams

Computer Network Diagrams solution extends ConceptDraw DIAGRAM software with samples, templates and libraries of vector icons and objects of computer network devices and network components to help you create professional-looking Computer Network Diagrams, to plan simple home networks and complex computer network configurations for large buildings, to represent their schemes in a comprehensible graphical view, to document computer networks configurations, to depict the interactions between network's components, the used protocols and topologies, to represent physical and logical network structures, to compare visually different topologies and to depict their combinations, to represent in details the network structure with help of schemes, to study and analyze the network configurations, to communicate effectively to engineers, stakeholders and end-users, to track network working and troubleshoot, if necessary.

ERD Symbols and Meanings

This vector stencils library contains 195 cloud computing icons.
Use it to design cloud computing infographic and diagrams with ConceptDraw PRO software.
"Cloud computing, also on-demand computing, is a kind of Internet-based computing that provides shared processing resources and data to computers and other devices on demand. It is a model for enabling ubiquitous, on-demand access to a shared pool of configurable computing resources (e.g., networks, servers, storage, applications and services), which can be rapidly provisioned and released with minimal management effort. Cloud computing and storage solutions provide users and enterprises with various capabilities to store and process their data in third-party data centers.
Cloud computing has become a highly demanded service or utility due to the advantages of high computing power, cheap cost of services, high performance, scalability, accessibility as well as availability." [Cloud computing. Wikipedia]
The vector stencils library "Cloud clipart" is included in the Cloud Computing Diagrams solution from the Computer and Networks area of ConceptDraw Solution Park.

Access point

Airport

Alert

Banknote

Banknote bundle

Banknote bundles

Backup

Bar chart

Big data

Book (closed)

Book (open)

Books

Box, close

Box, open

Braces

Brackets

Bug

Building

Bus

Cable connection

Calculator

Calendar

Car

CD/DVD

Check list

Check mark

Clock

Cloud

Cloud computing

Cloud database

Cloud hosting

Cloud storage

Code

Coffee cup

Coin

Coins stack

Coins stacks

Communication

Computer terminal

Console

CPU

Credit card

Cubes

Dashboard

Database

Databases

Datacenter

Dialog box

Dialog boxes

Document

Documents

Dollar sign

Download

Earth

Equal sign

Ethernet jack

Ethernet plug

Euro sign

Exclamation mark

Eye

Feed symbol

Feedback

File

Files

Filter

Firewall

Flash drive

Folder

Folders

Gamepad

Gauge

Gear

Gears, 2

Gears, 3

Globe

Hacker

Hard drive

Heart

Heart rhythm

Home

Hosting

Hotel

House

Image

Info

IP phone

Jet

Key

Keyboard

Laptop

Lego

Letter

Light bulb

Lightning

Line chart

Linux penguin

List

Load balancer

Location mark

Lock, close

Lock, open

Lock and key

Log

Logout

Magnifying glass

Mail

Map

Memory (RAM)

Microphone

Minus sign

Mobile phone

Monitor

Mouse

Movie

Music

Music player

Network

Network bus

Newspaper

NIC (Network interface controller)

Not found (Error 404)

Notebook

Office printer

Operator

Page

Pages

Pencil

Photo

Photo camera

Pie chart

Platform

Plus sign

Pound sign

Printer

Puzzle

Puzzles, 2x2

Puzzles, 3x3

Question sign

Rackmount server

Router

Safe

Satellite

Satellite antenna

Schedule

Sensor

Server

Server rack

Shield

Ship

Shopping bag

Shopping basket

Shopping cart

Smartphone

Social network

Software box

Sound

Spider

Spreadsheet

SSD

Star

Stars, 5

Stethoscope

Stickman

Stickmen

Suitcase

Support

Switch

Syringe

Tablet computer

Tools

Train

Truck

Truck 2

Umbrella

Upload

User man

User woman

User profile

Video

Video camera

Video mail

Virtual disk

Virus

Wallet

Web camera

Wifi antenna

Wireless

Wrench

X cross symbol

Yen sign

Used Solutions

Computer and Networks >

Cloud Computing Diagrams

Process Flow Diagram Symbols

Chemical and Process Engineering solution contains variety predesigned process flow diagram elements relating to instrumentation, containers, piping and distribution necessary for chemical engineering, and can be used to map out chemical processes or easy creating various Chemical and Process Flow Diagrams in ConceptDraw DIAGRAM.

Object-Role Modeling (ORM) Diagrams

Object-role Modeling (ORM) Diagram solution with powerful vector diagramming and data modeling tools, large quantity of specially developed samples and examples, and rich variety of vector objects corresponding to common ORM notation, ideally suits for developing the comprehensive, clear and visual Object-role Modeling (ORM) diagrams and schematics, understandable for all interested people from the different fields and business directions, for designing the ORM models, and demonstrating advantages from the use of ORM and its notation. It is intended for software developers and computer engineers, specialists in a field of Object-oriented programming (OOP), database architects, web-application constructors and developers, etc.

AWS Architecture Diagrams

AWS Architecture Diagrams with powerful drawing tools and numerous predesigned Amazon icons and AWS simple icons is the best for creation the AWS Architecture Diagrams, describing the use of Amazon Web Services or Amazon Cloud Services, their application for development and implementation the systems running on the AWS infrastructure. The multifarious samples give you the good understanding of AWS platform, its structure, services, resources and features, wide opportunities, advantages and benefits from their use; solution’s templates are essential and helpful when designing, description and implementing the AWS infrastructure-based systems. Use them in technical documentation, advertising and marketing materials, in specifications, presentation slides, whitepapers, datasheets, posters, etc.

EXPRESS-G data Modeling Diagram

EXPRESS-G data Modeling Diagram solution extends the ConceptDraw DIAGRAM software functionality with capabilities of EXPRESS data modeling language, includes powerful data modeling tools, Express-G diagram tool, database diagram tool, database design tool, wide variety of pre-made vector objects of EXPRESS-G notation and EXPRESS-G diagrams samples allowing software developers, software designers, software engineers and other stakeholders to make their data models for information systems, to develop the databases, to learn the principles of construction EXPRESS-G diagrams and helping to draw their own EXPRESS-G Data Modeling Diagrams, Express-G Diagrams or Database Model Diagram without any efforts.

Wireframe Tools

A wireframe is a scheme of a future web page. Wireframe illustrates the web page structure, location and size of the main elements, as well as their interaction with the user. With such scheme designer defines the functionality of the page, not its appearance.

CCTV Network Diagram Software

The CCTV is the process that carried out using the video cameras for transmitting the signal to the specific location, on the limited set of monitors. We are talking about the video cameras that are used for monitoring on such guarded objects as airports, banks, stores, military objects, etc. CCTV equipment is also used in the industrial installations, for surveillance in the public places, for recording the video on the digital video recorders.

Azure Architecture

Azure Architecture solution bundles into one handy tool everything you need to create effective Azure Architecture diagrams. It adds the extra value to versatile ConceptDraw DIAGRAM software and extends the users capabilities with comprehensive collection of Microsoft Azure themed graphics, logos, preset templates, wide array of predesigned vector symbols that covers the subjects such as Azure management, Azure storage, and Azure services, amongst others, and allow you to illustrate Azure Architecture diagrams at any degree of complexity, to present visually your Azure cloud system architecture with professional style, to design Azure cloud topology, to document Windows Azure Architecture and Azure Cloud System Architecture, to visualize the great abilities and work of Microsoft Azure Cloud System and Azure services.

Process Flow Chart Symbols

Process Flow Chart is a visual diagram which shows the processes and relationships between the major components in a system, and uses for this the special process flow chart symbols: special shapes to represent different types of actions and process steps, lines and arrows to represent relationships and sequence of steps. It often named process flow diagram, it use colored flowchart symbols.
It is incredibly convenient to use the ConceptDraw DIAGRAM software extended with Flowcharts Solution from the "Diagrams" Area of ConceptDraw Solution Park for designing professional looking Process Flow Charts.

ERD Symbols and Meanings

This vector stencils library contains 184 round icons.
Use it to design cloud computing infographics and diagrams with ConceptDraw PRO software.
"Though service-oriented architecture advocates "everything as a service" (with the acronyms EaaS or XaaS or simply aas), cloud-computing providers offer their "services" according to different models, which happen to form a stack: infrastructure-, platform- and software-as-a-service.
Infrastructure as a service (IaaS)
In the most basic cloud-service model ... providers of IaaS offer computers — physical or (more often) virtual machines — and other resources. IaaS refers to online services that abstract the user from the details of infrastructure like physical computing resources, location, data partitioning, scaling, security, backup etc.
Platform as a service (PaaS)
PaaS vendors offer a development environment to application developers. The provider typically develops toolkit and standards for development and channels for distribution and payment. In the PaaS models, cloud providers deliver a computing platform, typically including operating system, programming-language execution environment, database, and web server. Application developers can develop and run their software solutions on a cloud platform without the cost and complexity of buying and managing the underlying hardware and software layers.
Software as a service (SaaS)
In the software as a service (SaaS) model, users gain access to application software and databases. Cloud providers manage the infrastructure and platforms that run the applications. SaaS is sometimes referred to as "on-demand software" and is usually priced on a pay-per-use basis or using a subscription fee.
In the SaaS model, cloud providers install and operate application software in the cloud and cloud users access the software from cloud clients. Cloud users do not manage the cloud infrastructure and platform where the application runs. This eliminates the need to install and run the application on the cloud user's own computers, which simplifies maintenance and support. Cloud applications differ from other applications in their scalability — which can be achieved by cloning tasks onto multiple virtual machines at run-time to meet changing work demand." [Cloud computing. Wikipedia]
The vector stencils library "Cloud round icons" is included in the Cloud Computing Diagrams solution from the Computer and Networks area of ConceptDraw Solution Park.

Add

Analysis

API

App

Event-driven Process Chain Diagrams

Event-Driven Process Chain Diagrams solution extends ConceptDraw DIAGRAM functionality with event driven process chain templates, samples of EPC engineering and modeling the business processes, and a vector shape library for drawing the EPC diagrams and EPC flowcharts of any complexity. It is one of EPC IT solutions that assist the marketing experts, business specialists, engineers, educators and researchers in resources planning and improving the business processes using the EPC flowchart or EPC diagram. Use the EPC solutions tools to construct the chain of events and functions, to illustrate the structure of a business process control flow, to describe people and tasks for execution the business processes, to identify the inefficient businesses processes and measures required to make them efficient.

Electrical Symbols — Lamps, Acoustics, Readouts

Wiring and circuit diagrams use special symbols recognized by everyone who uses the drawings. The symbols on the drawings show how components like resistors, capacitors, inductors, switches, lamps, acoustic devices, measuring devices and other electrical and electronic components are connected together.
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.

Download ConceptDraw PRO
Free 21 Trial for Mac and PC

Buy Now