Health Nexus is a new blockchain and decentralized database for healthcare. We're taking some fundamental operations common to operating systems - account management, permissioning, file handling, and decentralizing them; which is why I think of it like a decentralized operating system.

Most other healthcare decentralization efforts are applications that can be built on Health Nexus. That's how we envision it working - service providers that understand decentralization and are crypto-savy will build applications on Health Nexus and use familiar SaaS models to engage healthcare providers (that don't really have crypto-economic experience and don't want to).

It's a Decentralization as a service (DaaS) model.