The WebSphere Extended Deployment business grid component provides ways of managing the scheduling and execution control of background activities in a grid computing environment.
The various ways that you can manage your business grid environment include using classification rules.
Classification rules are saved in a configuration file named gridclassrules.xml under the configuration directory of WebSphere Application Server. In WebSphere Extended Deployment V6.1, there is one gridclassrules.xml per cell, and the rules are ordered based on the priority element.