Guideline
A guideline value is a measured value or a numerical value that you should adhere to and which you should follow without being forced to do so or threatened with penalties. It is a recommendation, but with a certain emphasis.
Compliance with a guideline value is desirable and should be aimed for. You cannot act at your own discretion, because then you do not need to provide a guideline. In contrast to the guideline value, a limit value must be strictly observed .
If you act against reference values for no good reason, you may act negligently or with gross negligence. This can be indirectly punished, for example, in that insurance companies no longer compensate for damage.
A reference value can have tolerance limits. This includes measurement inaccuracies, among other things.
To differentiate between the modal auxiliary verbs must, should, may and can, there is DIN 820-2: 2000-01 Appendix E "Standardization work - Part 2: Design of standards". According to this linguistic rule, the verb "shall" roughly corresponds to a reference value.
Examples of guide values are:
- Recommended speed on roads.
- Standard land value of land.
In control engineering, instead of the reference value , one speaks of the setpoint compared to the actual value .
