=head1 NAME

ur - tools to create and maintain a ur class tree

=head1 VERSION

This document describes ur version 0.29.


 init      NAMESPACE [DB]      create a new ur app with default classes in place 
 define    ...                 define namespaces, data sources and classes       
 describe  CLASSES-OR-MODULES  show class properties, relationships, meta-data   
 update    ...                 update parts of the source tree of a UR namespace 
 list      ...                 list objects, classes, modules                    
 sys       ...                 service launchers                                 
 test      ...                 tools for testing and debugging