Dimensions of Discovery

I can classify various discoveries in MANET and Pervasive computing as:
a.) Route Discovery
b.) Device Discovery
c.) Service Discovery

I can also classify demises in:
a.) Device Demise
b.) Service Demise
c.) Route Demise

I can classify the maintainance as:
a.) Route Maintainance

As far as Demise and Discovery dimensions are concerned:
Device property is a superset of the Service property. That means that happening of the Device entity would result in the same happening of the Service entity.