The information gathered in the previous steps is used to create an initial design. This includes the definition of main layouts and primary components, where the focus is placed on items that prove design requirements can be met. A project approach, planning and pricing assessment is developed. This phase focusses on fast development of sketches and hand calculations where various ideas and versions can be developed. The items sketched and calculated during initial design should prove the main functional requirements and mitigate the main technical risks identified.