The webMethods Broker administration API allows your client applications to control and monitor the basic elements of the webMethods Broker system, including Broker Servers and the hosts on which they are running, Broker clients, client groups, event type definitions, security configurations, and tracing and logging functions. The following figure shows the elements that comprise a webMethods Broker system and their relationship to one another. For a complete list of attributes of Brokers, clients, client groups, and event types, see the webMethods Broker Client Java API Programmer’s Guide and Administering webMethods Broker.