文ぶん脈みゃく上じょうの必ひっす要よう素そ

noun

contextually required element

Computing term for an element that must be present based on surrounding context, such as in markup or configuration files.

• XMLでは、文ぶん脈みゃく上じょうの必ひっす要よう素そが欠かけているとパースエラーになる。

  In XML, if a contextually required element is missing, a parsing error occurs.