- abstract syntax.
A term for the grammatical description of a language in which precedence relationships between the productions are ignored for the sake of simplicity. Such a description has fewer constraints than those specified by a concrete syntax.
- anonymous type.
An unnamed type in XML Schema. The scope of the type is limited to the element or attribute within which it is defined. This is convenient for “one-off,” in-place type definitions that don't need to be reused.
- atomic type.
An XML Schema simple type that is not a list type or a union type.
- atomic value.
The value of an item in the value space of an atomic type.
A type-conversion process used to convert certain types of expressions to a sequence of atomic values. ...