The workflow API includes two servlet beans that you can use to create custom UIs for manipulating workflows, atg.workflow.servlet.WorkflowTaskQueryDroplet and atg.workflow.servlet.WorkflowInstanceQueryDroplet. Note that the Scenarios module includes these classes but does not include any Nucleus components of these classes. Each component of one of these classes is typically customized (by setting certain properties) to work with a specific workflow type. For example, the registration workflow type uses a customized version of WorkFlowTaskQueryDroplet.

The configuration for each new workflow type typically includes some of the workflow-related servlet bean components. This section describes the two workflow servlet beans, plus two other servlet beans that may be used to facilitate the development of custom workflow UIs. For more information about these servlet beans, see the ATG Page Developer's Guide.