Items for control points to invoke actions on UPnP devices with SOAP the Simple Object Access Protocol.

Items for control points to invoke actions on UPnP devices with SOAP the Simple Object Access Protocol.

Control is Step 3 in UPnP networking. Control comes after addressing (Step 0) where devices get a network address, after discovery (Step 1) where control points find interesting device(s), and after description (Step 2) where control points learn about device capabilities. Control is independent of eventing (Step 4) where control points listen to state changes in device(s). Through control, control points invoke actions on devices and poll for values. Control and eventing are complementary to presentation (Step 5) where control points display a user interface provided by device(s).