Dissertation process

Can you help me understand this Computer Science question?

Machine Learning:

During stages of the dissertation process, you may need to examine your problem from a different theoretical focus, that is, you may need to change your theory or model you initially started out with, you may have had other changes as well, e.g., focusing more on the specific problem.

In this discussion, discuss the theory that supports your research model in terms of your outcomes and predictors of those outcomes. Was it your original theory, has it changed or modified, have other aspects of your research changed any?

– 2 Reference.