Its role is to show the processes that are cyclical by nature. It is easily adaptable to any data regarding the R&D Process and very comprehensible for any audience. Research and development is essentially the first step in developing a new product, but product development is not exclusively research and development. Once again, this template enables you to creatively describe the research and development process. Product design, research and development (PDR&D) is a cycle of continuous improvement over time that includes four stages: product idea generation; product selection; product development; and launch. You can do so by the cyclical flow chart. Research and Development Cycle Slide.