Type of AttributeContainer that traverses a Graph and applies an algorithm to each active, traversed Node Traverses any part of a graph in order to print to standard output whatever is in the directive's path Traverses any part of a graph in order to locate a specific node in the directive's path using either search by name or search by type Traverses any part of a graph, invoking the Update method of each visited Node Traverses any part of a graph in order to locate a specific node in the directive's path by matching a given XPath expression (XPointer to a Node or Attribute)