Design and Development of New Products (DDNP) refers to the process of delivering a new product, service, idea, or technology to the market. The process usually follows a structured approach that involves several stages, from ideation and concept development to market research, product launch, and post-launch evaluation.A new product concept is basically a blueprint for your idea. When developing a new product concept, you should: describe it from your customers' point of view. list features and benefits of your product that may appeal to customers.