What aspects of a schema depend on the schema that included, imported, or redefined it?

Hi Folks,

Suppose a schema has no targetNamespace. What is the namespace of elements or attributes that are declared in that schema? 

As you know, it depends. Due to the Chameleon effect, if a no-targetNamespace schema A is included or redefined by schema B then the namespace depends on B's namespace.

So the "namespace" of a schema is one aspect that depends on including or redefining schemas.

What other aspects are dependent on including or redefining schemas?

Is there any aspect of a schema that is dependent on the schema that imports it?

/Roger