Do I need to have the Online Update Applet running in order to be notified of updates?

In OpenSuSE 11.2 YaST -> Online Update Configuration I can configure how often the system should check for updates (i.e. daily, weekly). Does this operate independently from the Online Update Applet (kupdateapplet)? The reason I ask is that the Applet doesn’t always seem to work correctly. However, if the system will check for online updates automatically regardless of the Applet, perhaps this isn’t an issue. If I can avoid messing with the Applet, that would be great.

An alternative is zypper. ‘zypper lu’ will list available updates. ‘zypper up’ will update packages with newer versions. There’s also YOU (Yast Online Updater).