The phrase "naive approach" means using a simple and basic way to solve a problem, without considering more complex or advanced methods. Full definition
(1) Perhaps the most naive approach is through the generality of objects or forms. (religion-online.org)
Assuming you don't care about time, effort, etc., what would be the simplest, most naive approach to compiling all of US law into a single body of work? (law.stackexchange.com)
A naive approach would simply change Newton's gravitational force law at large distances, but this attack fails to describe accurately other properties of large systems like galaxies. (discovermagazine.com)