Image shows the Invoke activity dialog. There are these tabs at the top: Skip Condition, Timeout, Targets, Sources, Headers, General, Correlations, Properties, Annotations, and Assertions. The Name field, Conversation ID field, Detail Label field, and Invoke as Detail check box display below. Below that is the Interaction Type dropdown list and Partner Role Web Service Interface section, with two fields: Partner Link and Operation. Partner Link has an icon on the far right. Below this are the Input and Output fields. Both of these fields have two icons at the far right (the Add icon and the Browse icon). At the bottom are the Help, Apply, OK, and Cancel buttons.