Guideline
A guideline is a statement by which to determine a course of action. A guideline aims to streamline particular processes according to a set routine or sound practice. Guidelines may be issued by and used by any organization (governmental or private) to make the actions of its employees or divisions more predictable, and presumably of higher quality. A guideline is similar to a rule.
Guideline (noun)
A non-specific rule or principle that provides direction to action or behaviour.
“He considered the Ten Commandments more a guideline than a requirement.”
Guideline (noun)
A plan or explanation to guide one in setting standards or determining a course of action.
Guideline (noun)
A light line, used in lettering, to help align the text.
Guidance (noun)
The act or process of guiding.
Guidance (noun)
Advice or counselling on some topic.
Guidance (noun)
Any process or system to control the path of a vehicle, missile etc.