There are so many ways to design products and services, but categorising may help you to make decisions.
https://www.slideshare.net/secret/HDhTjDAw2IZWP5
Practice T8a | Association ideas-words | Find the focal point of each component of a system-solution
Practice T8b | Design management | List of tasks to do for the design of each component of the system-solution.
Image: Surgical procedure. Josep Trueta