Network Diagram

What Does Network Diagram Mean?

A network diagram is used in computer telecommunication to draw a graphical chart of a network. This type of diagram is particularly useful for network engineers and designers in compiling detailed network documentation.


Generally, a network diagram usually consists of a network that is made up of interconnected groups or systems. The scope of a simple network diagram can be either a single application, a family of applications or even an entire enterprise. There are also other complicated network diagrams broadly designed to cover home networks, wireless networks, networking wirings, LAN networks, network topology, activity networks and network cabling.

Techopedia Explains Network Diagram

A network diagram is a unique kind of cluster diagram that represents a cluster or small structure of computers or other networking devices. Preidentified icons or symbols are used to draw network appliances and the style of lines between two nodes describes the type of connection.

To plot a network diagram, different scales and sizes are used to represent different levels of network granularity. For example, individual nodes used in LAN may represent a single peripheral device or file server, while in WAN, a the single node may represent an entire city.

The most common types of network diagrams include:

  • Neural Network (NN) Diagram: This is also known as an artificial neural network and represents a computational model based on a biological neural network.
  • Computer Networking Diagram: This is used for telecommunication network diagrams that depict the nodes and connections between the nodes.
  • Project Network and PERT Network Diagram: In project management, the project network diagram is a simple flow chart representing the sequence in which the project’s terminal elements or activities are completed.
  • Semantic Network Diagram: This is a network circuit of biological neurons. The semantic network diagram is composed of artificial neurons and nodes.
  • Sociogram: This is a graphical representation of the social links that a person has. It is also known as sociometric chart that draws a social structure of interpersonal relations in a group situation.

Several networking vendors offer powerful software packages for designing network diagrams because these are difficult to create for large and complex structures. Such software supports built-in network diagram icons to draw accurate network diagrams of computers, network devices and smart connectors. This software also equips the networking engineers with an all-inclusive set of templates, symbols and computer clip-art images to create complicated network diagrams with a high level of precision.


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Margaret Rouse

Margaret Rouse is an award-winning technical writer and teacher known for her ability to explain complex technical subjects to a non-technical, business audience. Over the past twenty years her explanations have appeared on TechTarget websites and she's been cited as an authority in articles by the New York Times, Time Magazine, USA Today, ZDNet, PC Magazine and Discovery Magazine.Margaret's idea of a fun day is helping IT and business professionals learn to speak each other’s highly specialized languages. If you have a suggestion for a new definition or how to improve a technical explanation, please email Margaret or contact her…