This is a "Hello, world!" example that shows how to use the C++/Tree mapping to access XML instance documents described by XML Schema definitions. The example consists of the following files: hello.xsd XML Schema which describes "hello" instance documents. hello.xml Sample XML instance document. hello.hxx hello.cxx C++ types that represent the given vocabulary and a set of parsing functions that convert XML instance documents to a tree-like in-memory object model. These are generated by XSD from hello.xsd. driver.cxx Driver for the example. It first calls one of the parsing functions that constructs the object model from the input file. It then prints the content of the object model to STDERR. To run the example on the sample XML instance document simply execute: $ ./driver hello.xml