Workflow processes that contain a user view typically store it in a workflow variable named user. You can reference a view in the workflow expressions by prefixing user to a user view path (for example, user.waveset.accountId). The string waveset identifies the attribute named accountId as belonging to another object named waveset, which itself belongs to the user view object.
Approval forms are written for a view known as the WorkItem view. The Work Item view by default contains all the workflow variables under an attribute named variables. If the approval form is written for a workflow that contains a user view, the prefix variables.user. is used to reference attributes in the user view (for example, variables.user.waveset.roles). See WorkItem View later in this chapter for more information.