I've done contract work for a manufacturer of electronic control systems for excavation and mining equipment. They've aggressively implemented DRM in their new

I've done contract work for a manufacturer of electronic control systems for excavation and mining equipment. They've aggressively implemented DRM in their new products to support renting time-limited and geofenced access to optional features. Their revenue models for the newest generation of equipment are based in large part on the recurring revenue stream enabled by DRM.