Rule group condition
Rule groups are defined in LF‑ET by an additional "first" condition.

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The title of the condition must contain a rule group keyword, in this decision table the keyword "step" was selected
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The same keyword must also appear in the rule group action title
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A value table must be defined for the condition
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Any symbols are possible, but purely numeric symbols have the advantage that the values can be renumbered automatically if required, including maintenance of the corresponding values in the rule cells of the rule group action
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When checking the decision table, the system checks both the accessibility of each rule group and the validity of the entries in the rule cells of the rule group action