Data Pull vs. Push OOP Approach

Question

When I design my system from scratch, I often face a dilemma whether my object should push information into another objects OR whether the objects should

Answer 1

From a design perspective, the data pull is always a better approach. The reason being that whatever information needs to be fetched, you're better off making functions in classes that returns those values instead of pushing information, which is not wrong but may complicate the outputs hierarchy when you are using polymorphism and advanced OOP concepts. Hope this answers your question.