You can create three kinds of salary grades:
Rate-based, in which a range of minimum to maximum values are applied, for salary progression using grade sequences. Use rate-based salary grades to apply salaries falling between a minimum or maximum value. For example, you could pay IT programmers between $74,000 and $78,000 depending on certification, seniority, and skill level.
Step-based, in which employees are entitled, based on factors such as adjustment date, to salary increments along the pay scale or grade scale. For example, in the education system, the steps assigned to teachers that determine their salary may increase according to the degree (Bachelor's, Master's, or Ph.D) that they hold, or years or service.
Value-based, in which only one salary value is available, such as a contractor's hourly rate or the hourly pay of library clerks.