The Survey Manager tool is very configurable and can be integrated into other systems such as your help desk, CRM or other workflow applications.
It has a Notes Administration Interface and an XPages web interface.
There are three versions of the Survey Manager Application.
Pro Version
Fully Supported
Integrates with other systems such as CRM
Allows surveys to be tracked by person
Supports multi-lingual surveys
Exports to Excel
Automatically generates pivot tables and charts in Excel
Lite Version
Free
Annual support package available
OpenNTF Apache Version
Free
Open Source under an Apache Licence at Open NTF
More information is available on on the Product Page