In mitkTool.cpp the call SetProperty("segmentation", BoolProperty::New(true)); is used when creating a new segmentation node.
As far as I can see this property is only used in
- mitkImageStatisticsHotspotTest.cpp
- mitkMultiGaussianTest.cpp
- QmitkDataSelectionWidget.cpp
For segmentations most of the time the property "binary" is used.
We should clarify if the "segmentation" property is useful and how it should be used.