assertion element的意思|示意

If the element namespace is recognized as a policy-extension namespace, unmarshal as an empty marker assertion.

如果元素名称空间被认为是一种策略扩展名称空间，那么要将它分解为一个空的标记器断言。

The value of the test attribute of the xs: assertion element facet is an XPath 2.0 expression or XPath 2.0 subset as defined by the XML Schema 1.1 specification that evaluates to either true or false.

如xml Schema 1.1规范定义的那样，xs： assertion元素facet的test属性的值是一个XPath 2.0表达式或XPath 2.0子集，其值为true或false。

Role assignments are made at the configuration unit scope, and the policy that it inherits from its ancestor element and will apply if there is no explicit policy assertion attached to the element.

角色分配在配置单元范围内进行，如果没有附加到元素的显式策略断言，则将应用从其祖先元素继承的策略。