Preferred database design method for assigning user roles? (Hats vs. Groups)

Question

I have medium sized MySQL database with a primary \"persons\" table which contains basic contact information about every human being connected to the theatre and theatre school

Answer 1

yes, teachers are the only people who have a pay rate as such. That field should more accurately be called "classPayRate" - it's a special case for teacher employees. Non-teacher employees submit their total hours as a separate line item in our payroll system.