Abstract

The element is an abstract type. A SOAP message must include types derived from that type. An abstract type is not a valid type without derived element types.

Block

Prevents a derived element from appearing in the hierarchy in place of this element. The block value can contain "#all" or a list that includes extension, restriction, or substitution.

Final

Prevents the schema from extending or restricting the simple type as a derived type.

Substitution Group

The name of an element to substitute with the element.

Nillible

The element can have nil values. A nil element has element tags but has no value and no content.