我可以有一个XML模式(XSD)包含另一个XML模式吗?

I currently have two XSD schemes and one is a "light" version of the other. Right now I have everything in the "light" version repeated in the "complete" schema, but this becomes a pain when I need to make a change, and it goes against the DRY principle anyways, so I was wondering if there was an element that served to include another schema into a schema, so I can have my "complete" inherit from the "light" schema to reduce maintenance hurdles.I currently have two XSD schemes and one is a "