system followed in a particular discipline crossword clue

 The system followed in a particular discipline crossword clue is methodology. Methodology is a system of methods and procedures that is used to achieve a particular goal. It can be used to describe the way that a particular discipline is practiced or the way that a research study is conducted.

Here are some other possible answers for the crossword clue "system followed in a particular discipline":

7 letters: METHODOLOGY

8 letters: APPROACH

9 letters: PROCESS

10 letters: PROCEDURE

11 letters: PROTOCOL

I hope this helps!