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Entity Relationship Diagram Examples

Create 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.

ConceptDraw DIAGRAM diagramming and vector drawing software gives the ability to describe a database using the Entity-Relationship model. Entity-Relationship Diagram(ERD) solution from the Software Development area supplies the ConceptDraw DIAGRAM with icons advocated by Chen's and Crow’s Foot notation that can be used when describing a database.
How to Build an Entity Relationship Diagram (ERD)
How to Build an Entity Relationship Diagram (ERD)

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.
The vector stencils library "Computer network" contains 51 symbols of computer network devices and equipment for drawing computer network diagrams.
"Network Mapping Software.
A number of software tools exist to design computer network diagrams / or generate visual maps of networks, servers, storage, services, data centers, and other peripherals. Broadly, there are two types of software tools - those that help create diagrams manually and those that generate them using automated / semi-automated approaches.
Type of Software.
(1) Manual - allows users to design and draw logical and physical topology diagrams by manually placing icons and connections.
(2) Automated - generate topology diagrams / maps by traversing the network and automatically discovering resident devices or by importing network data." [Comparison of network diagram software. Wikipedia]
ConceptDraw PRO is the software for manual design of computer network diagrams. The solutions of the Computer and Networks area in ConceptDraw Solution Park extend ConceptDraw PRO with vector stencils libraries, templates and examples for creating the computer network diagrams.
The symbols example "Computer network - Vector stencils library" was created using the ConceptDraw PRO diagramming and vector drawing software extended with the Computer and Networks solution from the Computer and Networks area of ConceptDraw Solution Park. solution-park/ computer-and-networks
Laptop, laptop computer,
Desktop computer
Desktop computer, desktop PC,
Firewall, firewall,
Bus, bus,
Ethernet, Ethernet,
Star network
Star network, star,
FDDI Ring, FDDI ring,
Token-ring, Token-ring,
Comm-link, Comm-link,
Modem, modem,
Laser printer
Laser printer, laser printer,
Inkjet printer
Inkjet printer, inkjet printer,
Image scanner
Image scanner, scanner,
City, city,
Ethernet hub
Ethernet hub, hub,
Wireless router
Wireless router, wireless router,
Network switch
Network switch, switch,
iPod Classic
iPod Classic, iPod Classic,
iPhone/ iPod Touch
iPhone/ iPod Touch, iPhone, iPod Touch,
Xserve RAID
Xserve RAID, Xserve RAID,
XServe, XServe,
Apple Thunderbolt Display
Apple Thunderbolt Display, Apple display,
Data store
Data store, data,
Mac Pro
Mac Pro, Mac Pro,
iMac, iMac desktop,
RAID, RAID drive,
Mainframe, mainframe,
Rack-mountable server
Rack-mountable server, server,
Server, server,
Cloud, cloud,
Computer monitor
Computer monitor, monitor,
Workstation, workstation,
Router, router,
IP Phone
IP Phone, IP phone,
Fax, fax,
Mobile phone
Mobile phone, cell phone,
Smartphone, smartphone,
Compact Disk
Compact Disk, compact disk,
Mouse, mouse,
Apple Wireless Mouse
Apple Wireless Mouse, Apple wireless mouse,
Computer keyboard
Computer keyboard, keyboard,
Apple Keyboard
Apple Keyboard, Apple keyboard,
Radio tower
Radio tower, radio tower,
Satellite dish
Satellite dish, satellite dish,
Satellite, satellite,
Webcam, webcam,
AirPort Extreme
AirPort Extreme, AirPort Extreme,
Airport Express
Airport Express, Airport Express,
MacBook, MacBook,
iPhone 4
iPhone 4, iPhone 4,