| XSCMValidator | Note: State of the content model is stored in the validator | code | html |
| CMBuilder | This class constructs content models for a given grammar. | code | html |
| CMNodeFactory | code | html | |
| XSAllCM | XSAllCM implements XSCMValidator and handles <all>. | code | html |
| XSCMBinOp | Content model Bin-Op node. | code | html |
| XSCMLeaf | Content model leaf node. | code | html |
| XSCMRepeatingLeaf | A compound content model leaf node which carries occurence information. | code | html |
| XSCMUniOp | Content model Uni-Op node. | code | html |
| XSDFACM | DFAContentModel is the implementation of XSCMValidator that does all of the non-trivial element content validation. | code | html |
| XSDFACM.Occurence | code | html | |
| XSEmptyCM | XSEmptyCM is a derivative of the abstract content model base class that handles a content model with no children (elements). | code | html |