represented too simply or in an overly formulaic way, reflecting a shallow or incomplete understanding of complex subject matter
sketchy, incomplete
relating to a schema
A simplified line drawing used by scientists, engineers, technologists and others to illustrate a system at an abstract level. Schematic drawings often use standard symbols for clarity.
In a manner that simplifies a concept or issue so that its nuance and complexity are lost or important details are overlooked.
Overly simple.