1.6 Is this only about software or is a solution with a hardware component also possible?

[ upd 06.7.2022] The technical requirements explicitly request that a hardware device (triage tag) is provided as part of the solution (either own development or use of existing devices adapted for the purpose of the project) in order to enable the monitoring of key vital parameters. The specific requirements relating to the tag are provided in the Tender Documents (TD1), e.g., requiring the tag to be of small size and be cost-effective.

The Tender Documents are available here https://innovationprocurement.com/tenders/7/show/pre-commercial-procurement-of-innovative-triage-management-systems-strengthening-resilience-and-interoperability-of-emergency-medical-services