What is significant for good shape? How is good shape achieved? What are the factors that make up a beautiful product shape? These fundamental questions have concerned people since Greek antiquity. Good form appeals to people on an aesthetic level. An awareness of this has made product design one of the most important tools for marketing today. It is therefore of great importance to have knowledge of the form design process and form quality. The project investigates form development and form creation with aesthetic aspects in focus. The goal is to describe and gather knowledge about the mental process of working with form design and to develop a design tool to support a structural and creative form development process. The aim is also to develop new concepts to be able to talk about good form. Based on the hypothesis that methodology generates creativity, the aim is to understand how the design process works, including investigating the role of three-dimensional drawings and images in the development of form and as a communication tool, exploring whether it is possible to systematize creative creation and investigating how different design tools affect the generation of form in a design process. The research results are expected to contribute with actual solutions so that existing design methodology can be made more efficient and lead to new methodology for the creation process.