The parameter attribute @SYSTEMONLY is  attribute 

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Syntax

Place 

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Arguments

• Even SYS or SYL parameters can be requested to the user in particular cases.
  @SYSTEMONLY
  avoids this.

Remarks

It is normal Quaestor behaviour that, when a parameter with a SYS property cannot be calculated, it will request non-determinable parameters as input to the user. When you really do not want this to happen, you can use this attribute. For example, when this parameter is calculated using a relation which contains data that should be known and when not, further calculations will be useless and the process should be stopped.

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