In 2001, he pioneered TREX, an alternative XML schema language which has since merged with the RELAX language, to form RELAX NG.

在 2001 年，他首创了 TREX，它是另一种可用的 XML 模式语言，并且已经与 RELAX 语言合并形成了 RELAX NG。

HANA is built on a superset of technologies with a long history at SAP, including the MaxDB database and TREX in-memory engine.

HANA构建在SAP具有悠久历史的技术的超集上，包括MaxDB数据库和TREX常驻内存引擎。