How will you segregate (on what basis) the regression , sanity , smoke suite if there are more than 400 manual test cases are present?

Before segregation of testcases, one must have clear idea about the different testing methods. So please refer the link for that. So, obviously, the smoke testing suite will contain the high priority and high severity testcases. So and if time permits, include severity 2 level as well. So, the set of testcases with high severity…