System design is a research area that focuses on the planning, design, and development of systems, which can include software systems, hardware systems, or a combination of both. This field involves identifying the requirements and specifications of a system, creating a detailed design that outlines how the system will function, and implementing the design through various programming languages, tools, and technologies. System design often involves breaking down complex problems into smaller, more manageable components, and then designing and integrating these components to create a cohesive and functioning system. This research area also encompasses considerations such as scalability, reliability, performance, security, and usability of the system. Overall, system design plays a crucial role in ensuring that systems are developed and deployed effectively to meet the needs of users and organizations.