User participation in the system development process plays a crucial and vital role in the success of system analysis and design. Devices including websites are successful and easy to learn and implement as user participation will improve and enhance performance and increase user acceptance and satisfaction. User participation will encourage users to participate in decision-making and actions during the system development process. The user participation rationale will reduce the time taken by designers in various stages from implementation, testing, evaluation, and training since users will become more aware of the new design. This research aims to provide an in-depth assessment of the significance of user participation during the phases of system analysis and design and to discuss the importance of user participation in system development as to why, how, and when we need to involve participants in the design process. The paper also highlights the benefits, challenges, and best practices associated with user involvement, along with real-world examples to illustrate key points. By understanding the impact of user participation, organisations can make informed decisions to enhance the quality of their systems and ensure successful project outcomes. The findings emphasise that user participation leads to improved requirement clarity, reduced rework, enhanced user adoption, and minimized scope creep.