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ERD Symbols and Meanings

ERD Symbols and Meanings
Entity Relationship Diagram (ERD) is a popular software engineering tool for database modeling and illustration the logical structure of databases, which uses one of two notations - Chen's or Crow’s Foot. Crow's foot notation is effective when used in software engineering, information engineering, structured systems analysis and design. Each of these notations applies its own set of ERD symbols. Crow's foot diagrams use boxes to represent entities and lines between these boxes to show relationships. Varied shapes at the ends of lines depict the cardinality of a given relationship. Chen's ERD notation is more detailed way to represent entities and relationships. ConceptDraw DIAGRAM application enhanced with all-inclusive Entity-Relationship Diagram (ERD) solution allows design professional ER diagrams with Chen's or Crow’s Foot notation on your choice. It contains the full set of ready-to-use standardized ERD symbols and meanings helpful for quickly drawing, collection of predesigned ERD samples, examples and templates. ConceptDraw Pro is a great alternative to Visio for Mac users as it offers more features and can easily handle the most demanding professional needs.
How to Build an Entity Relationship Diagram (ERD)
How to Build an Entity Relationship Diagram (ERD)
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
Add, add,
Analysis
Analysis, analysis,
API
API, API,
App
App, App,
Archive
Archive, archive,
Back
Back, back,
Backup
Backup, backup,
Book
Book, book,
Books
Books, books,
Box
Box, box,
Bug
Bug, bug,
Calculation
Calculation, calculation,
Calendar
Calendar, calendar,
Call
Call, call,
Car
Car, car,
CD
CD, CD,
Certificate
Certificate, certificate,
Cloud alert
Cloud alert, cloud alert,
Cloud analysis
Cloud analysis, cloud analysis,
Cloud authorization
Cloud authorization, cloud authorization,
Cloud collaboration
Cloud collaboration, cloud collaboration,
Cloud communications
Cloud communications, cloud communications,
Cloud computing
Cloud computing, cloud computing,
Cloud configuration
Cloud configuration, cloud configuration,
Cloud connectivity
Cloud connectivity, cloud connectivity,
Cloud control
Cloud control, cloud control,
Cloud cost calculation
Cloud cost calculation, cloud cost calculation,
Cloud database
Cloud database, cloud database,
Cloud download
Cloud download, cloud download,
Cloud drive
Cloud drive, cloud drive,
Cloud error
Cloud error, cloud error,
Cloud failure
Cloud failure, cloud failure,
Cloud FAQ
Cloud FAQ, cloud FAQ,
Cloud feedback
Cloud feedback, сloud feedback,
Cloud files
Cloud files, cloud files,
Cloud gateway
Cloud gateway, cloud gateway,
Cloud hosting
Cloud hosting, cloud hosting,
Cloud info
Cloud info, cloud info,
Cloud Internet storage
Cloud Internet storage, cloud Internet storage,
Cloud lock
Cloud lock, cloud lock,
Cloud locked
Cloud locked, cloud locked,
Cloud mail
Cloud mail, cloud mail,
Cloud music
Cloud music, cloud music,
Cloud paperless office
Cloud paperless office, cloud paperless office,
Cloud performance
Cloud performance, cloud performance,
Cloud photo
Cloud photo, сloud photo,
Cloud safe
Cloud safe, сloud safe,
Cloud search
Cloud search, сloud search,
Cloud security
Cloud security, cloud security,
Cloud servers
Cloud servers, cloud servers,
Cloud services
Cloud services, cloud services,
Cloud shopping
Cloud shopping, cloud shopping,
Cloud success
Cloud success, cloud success,
Cloud synchronization
Cloud synchronization, cloud synchronization,
Cloud tech support
Cloud tech support, cloud tech support,
Cloud transfer
Cloud transfer, cloud transfer,
Cloud unlocked
Cloud unlocked, cloud unlocked,
Cloud upload
Cloud upload, cloud upload,
Cloud video
Cloud video, cloud video,
Code
Code, code,
Collaboration
Collaboration, collaboration,
Communication
Communication, communication,
Community cloud
Community cloud, community cloud,
Contact list
Contact list, contact list,
Content
Content, content,
CPU
CPU, CPU,
Database
Database, database,
Datacenter
Datacenter, datacenter,
Data storage
Data storage, data storage,
Desktop
Desktop, desktop,
Display
Display, display,
Document
Document, document,
Documents
Documents, documents,
Dollar
Dollar, drawing shapes, dollar,
Done
Done, done,
Down
Down, drawing shapes, down,
Download
Download, download,
E-commerce
E-commerce, E-commerce,
Earth
Earth, earth,
Email
Email, email,
Encryption
Encryption, encryption,
Error
Error, error,
Ethernet
Ethernet, ethernet,
Euro
Euro, euro, drawing shapes,
Failure
Failure, failure,
Feed
Feed, feed,
File
File, file,
Files
Files, files,
Filter
Filter, filter,
Firewall
Firewall, firewall,
Flash drive
Flash drive, flash drive,
Folder
Folder, folder,
Forward
Forward, forward, drawing shapes,
Hard drive
Hard drive, hard drive, drawing shapes,
Hardware
Hardware, hardware, drawing shapes,
Health
Health, health, drawing shapes,
Health monitoring
Health monitoring, health monitoring, drawing shapes,
Home
Home, home, drawing shapes,
Hosting
Hosting, hosting,
Image
Image, image,
Info
Info, info,
Innovation
Innovation, innovation,
Key
Key, key,
Keyboard
Keyboard, keyboard,
Laptop
Laptop, laptop,
Letter
Letter, letter, drawing shapes,
Lightning
Lightning, lightning, drawing shapes,
Link
Link, link, drawing shapes,
List
List, list, drawing shapes,
Location
Location, location, drawing shapes,
Lock
Lock, lock, drawing shapes,
Log
Log, log, drawing shapes,
Login
Login, login,
Logout
Logout, logout,
Mail
Mail, mail, drawing shapes,
Mail list
Mail list, mail list, drawing shapes,
Marketplace
Marketplace, marketplace, drawing shapes,
Memory (RAM)
Memory (RAM), memory, RAM, drawing shapes,
Message
Message, message, drawing shapes,
Minus
Minus, minus, drawing shapes,
Mobile
Mobile, mobile, drawing shapes,
Mobile cloud computing
Mobile cloud computing, mobile cloud computing, drawing shapes,
Mouse
Mouse, mouse, drawing shapes,
Music player
Music player, music player, drawing shapes,
Network
Network, network, drawing shapes,
Notebook
Notebook, notebook, drawing shapes,
Notification
Notification, notification, drawing shapes,
Package
Package, package, drawing shapes,
Patch
Patch, patch, drawing shapes,
Performance
Performance, performance, drawing shapes,
Personal cloud
Personal cloud, personal cloud,
Phone book
Phone book, phone book, drawing shapes,
Photo
Photo, photo, drawing shapes,
Plug
Plug, plug, drawing shapes,
Pound
Pound, pound, drawing shapes,
Power
Power, power, drawing shapes,
Power button
Power button, power button, drawing shapes,
Process
Process, process, drawing shapes,
Processing
Processing, processing, drawing shapes,
Puzzles
Puzzles, puzzles, drawing shapes,
Question sign
Question sign, question sign, drawing shapes,
Recovery
Recovery, recovery, drawing shapes,
Remote
Remote, remote, drawing shapes,
Repair
Repair, repair, drawing shapes,
Restore
Restore, restore, drawing shapes,
Rocket (Logic app)
Rocket (Logic app), rocket, logic app, drawing shapes,
Router
Router, router, drawing shapes,
Safety
Safety, safety, drawing shapes,
Schedule
Schedule, schedule,
Script
Script, script, drawing shapes,
SDK
SDK, drawing shapes, SDK,
Search (Scan)
Search (Scan), search, scan, drawing shapes,
Security
Security, security, drawing shapes,
Server
Server, server, drawing shapes,
Server rack
Server rack, server rack, drawing shapes,
Services
Services, services,
Sharing
Sharing, sharing, drawing shapes,
Shopping basket
Shopping basket, shopping basket, drawing shapes,
Sign in
Sign in, sign in, drawing shapes,
Smartphone
Smartphone, smartphone, drawing shapes,
Song
Song, song, drawing shapes,
Sound
Sound, sound, drawing shapes,
Stethoscope
Stethoscope, stethoscope, drawing shapes,
Stickman
Stickman, stickman, drawing shapes,
Subscription
Subscription, subscription, drawing shapes,
Sync
Sync, sync, drawing shapes,
Tablet
Tablet, tablet, drawing shapes,
Tech support
Tech support, tech support, drawing shapes,
Time
Time, time, drawing shapes,
Top rated
Top rated, top rated, drawing shapes,
Transfer
Transfer, transfer, drawing shapes,
Unlink
Unlink, unlink, drawing shapes,
Unlock
Unlock, unlock, drawing shapes,
Up
Up, up, drawing shapes,
Upload
Upload, upload,
User
User, user, drawing shapes,
Video mail
Video mail, video mail, drawing shapes,
View (visual)
View (visual), view, visual, drawing shapes,
Virus protection
Virus protection, virus protection, drawing shapes,
Waste bin
Waste bin, waste bin, drawing shapes,
Web
Web, web, drawing shapes,
Wifi
Wifi, wifi, drawing shapes,
Wireless
Wireless, wireless, drawing shapes,
Yen sign
Yen sign, yen sign, drawing shapes,
Used Solutions

entity-relationship diagram, ER-diagram, database ERD Entity-Relationship Diagram (ERD)

entity-relationship diagram, ER-diagram, database ERD
Entity-Relationship Diagram (ERD) solution extends ConceptDraw DIAGRAM software with templates, samples and libraries of vector stencils from drawing the ER-diagrams by Chen's and crow’s foot notations.

BPR Diagram. Business Process Reengineering Example

This sample was created in ConceptDraw DIAGRAM diagramming and vector drawing software using the Business Process Diagram Solution from the Business Processes area of ConceptDraw Solution Park. The Business Process Solution is based on the standard BPMN 2.0 and includes the set of libraries of ready-to-use objects.

How to Build Cloud Computing Diagram Principal Cloud Manufacturing

The term “cloud” is very popular and widely used now, it is a server, data processing centre, or a network which lets to store the data and software, provides access to them, allows to run applications without installation and gives the possibility to process data hosted remotely via the Internet connection. For documenting the Cloud Computing Architecture with a goal to facilitate the communication between stakeholders are successfully used the Cloud Computing Architecture diagrams. It is convenient and easy to draw various Cloud Computing Architecture diagrams in ConceptDraw DIAGRAM software with help of tools of the Cloud Computing Diagrams Solution from the Computer and Networks Area of ConceptDraw Solution Park.