You can think of a schematic diagram as an x-ray of the skeleton of your concept. It’s the structure on which all the other components will depend, supporting their function and flow. Thoughtfully considering the compositional makeup of elements, before getting caught up in the details, is an important early step in development.
A schematic diagram allows your team to collaborate on how the idea will work as a functional system. Don’t focus on refinement here; instead, experiment with the best arrangement of parts to determine the ideal system. Using symbolic drawings, you need only show the compositional makeup of the basic parts and how they interact with or transition from one element to the next. Although it may sound technical, Schematic Diagramming can be used in nearly any project, from structuring screen layouts, to coordinating navigation, to sequencing the steps in a service experience. Use this method to guide your team in thinking holistically about an idea first to ensure that it is structurally sound.