Why is system design used?

System design is used to plan and create the architecture, structure, and components of a software system or application. It is an essential phase in the software development process that focuses on defining how different modules or components of a system will work together to fulfill specific requirements and achieve desired functionalities.

The main purpose of system design is to ensure that the resulting system is scalable, efficient, reliable, and meets the desired objectives. It involves making crucial decisions about the system’s overall structure, data storage and retrieval methods, communication protocols, user interface design, security measures, and other technical aspects.