ID.AM-02:

Inventories of software, services, and systems managed by the organization are maintained

Implementation Examples

Ex1: 

Maintain inventories for all types of software and services, including commercial-off-the-shelf, open-source, custom applications, API services, and cloud-based applications and services

Ex2: 

Constantly monitor all platforms, including containers and virtual machines, for software and service inventory changes

Ex3: 

Maintain an inventory of the organization's systems