Image shows the Invoke activity dialog. There are five tabs at the top: General, Correlations, Properties, and Annotations. The Name field displays 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). Below this is the Options section, which includes the Conversation ID field. At the bottom are the Help, Apply, OK, and Cancel buttons.