3589605 - Is it possible to rate on forms (PM or 360) by using rules or definitions?

When trying to rate on forms, is it possible to give a ratings to users based on rules/definitions?

For example:

"If employee is at the company for less than 6 months, can the rating be: "Too New To Rate", if employee is at the company for more than 6 months a rating should be given manually. 

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