# OSI and TCP/IP Models

The OSI and TCP/IP model is used to help the developer to design their system for interoperability. The OSI model has 7 layers while the TCP/IP model has a more summarized form of the OSI model only consisting 4 layers. This is important if you're trying to design a system to communicate with other systems.

Visit the following resources to learn more:

- [@article@Cloudflare - What is the OSI model](https://www.cloudflare.com/learning/ddos/glossary/open-systems-interconnection-model-osi/)
- [@video@TCP/IP and the OSI Model Explained!](https://www.youtube.com/watch?v=e5DEVa9eSN0)