Definition and Usage¶ The <compositeRule> element defines a logical expression among its child elements (<rule> and <compositeRule>) by means of a Boolean operator attribute. Syntax¶ Element Attributes Content Parent <compositeRule> id, operator (<compositeRule> <rule>)+ <ruleBase> or <compositeRule> Attributes¶ Name Value Description id It may receive any string value that begins with a letter or an underscore and that only contains letters, digits, <".">, and <"_">. The id attribute uniquely identifies the element within a document. operator "and" or "or". The operator attribute defines a logical expression among the child elements of the <compositeRule> element.