Question: Extensible Stylesheet Language Transformations (XSLT) have advanced from the early Extensible Stylesheet Language (XSL) standard. XSL determines a dialect definition for XML information introduction and information changes. Informative introduction implies showing information in some organization or potential medium. Introduction is about style. Information change implies parsing an information XML record into a tree of hubs, and after that changing over the source tree into an outcome tree. Change is about information trade.