IBM Rational Publishing Engine Data Services is an optional feature you can include while installing IBM Rational Publishing Engine. When you select this feature to install, it is placed in your IBM Rational Publishing Engine installation home directory. Once the components are on your computer, you must deploy the adaptors into your web server, which is either Apache Tomcat or WebSphere Application Server.
This setup applies to Rational Clearquest, Rational Requisite Pro, Rational Clearcase, or Rational Test Manger. One data adaptor provides a communication interface to many IBM Rational Publishing Engine clients. For performance reasons, do not install the data adaptor on the same server as the database. On the computer where the data adaptor is installed, you must also install the native client to the database (Rational Requisite Pro thick client, Rational Clearquest Eclipse client, and others). On the data adaptor machine, the data adaptor uses the native client to communicate with the database. Many IBM Rational Publishing Engine clients, even in different locations, connect to the Data Adaptor by using http://<server>:<port>/DataServices/<Adaptor>/<data>.