In a standalone WebSphere Application Server environment, there is one Web Services Distributed Management (WSDM) application deployed for each application server instance.
The WSDM application acts as an administrative client to the management code running inside the single Java virtual machine for that instance. Figure 1 illustrates an Autonomic Computing Manager (ACM) interacting with two application server instances, each with its own WebSphere Application Server WSDM application exposing the manageability for that individual instance.