Once the your DSA/Catalog web application has been installed,
a link to its front page should be visible from within the
Tomcat Manager interface, or you can visit
http://<hostname>:<port>/<webapp-name>/, where <hostname> is the fully-qualified
name of the machine where tomcat is installed,
<port> is the port on which tomcat is
installed, and <webapp-name> is the name of the war
file you installed (minus the .war suffix).
In the left-hand navigation menu of your installed web application, you will find a link called "Configuring your DSA/Catalog". Visit this link for detailed instructions about configuring your DSA/Catalog installation to export your own RDBMS data, and registering it in the Virtual Observatory.
User's Guide
Installer's Guide
Developer's Guide