Abstract: The invention relates to a method for developing an assembly, which at least includes one mechatronics component with a mechanical portion, an electrical portion, and an information technology portion, wherein the method includes the steps of: Developing the mechanical portions, the electrical continuous or periodic communicating of a development status information of the development process of at least a first of the portions to the development process of a second of the portions or to the development processes of the two remaining portions; and varying the development processes of the second of the portions or the development processes of both remaining portions, taking into account the development status information. The invention further relates to a respective arrangement.