Design input is foundation of medical device development without which bringing up a new product to the market is difficult. Getting the design input right is the most important thing to make sure that the product is developed correctly. There are few goals that needs to be achieved to consider the design input such as capturing functional, safety and regulatory requirements, building upon user needs and intended use. Only marketing team cannot decide the design input as no one person of the team have the responsibility for the design input. When team is involved every team member’s experience and opinions makes a difference. There are other sources while defining the design inputs such as industry standards, end users, previous projects or products, competitor products. Getting feedback from the users improves the performance of the product and studying the competitors helps the team to improve the design of the product. Previous projects or products reference will improve the performance as there will be more added features or better technology is being used.