[validation context] - The element ancestor that has a global element declaration. This can be the current element.

[validity] - One of 'valid', 'invalid', or 'notKnown'.

[validation attempted] - One of 'full', 'none', or 'partial'. The value 'partial' means that some children have been validated but not all.

[element declaration] - The schema element declaration used to validate this element.

There is more but these are the important ones.