How do I build a system inventory for data protection and security?

Define scope and data model: System, Owner, Purpose, Criticality, Hosting, Accesses, Data types, Interfaces, Service providers, Sub-service providers, Logging, Retention. Use unique IDs and naming conventions and link to RoPA, contracts, TOMs, and risk assessments. Implement a maintenance process covering procurement, releases, and vendor changes, otherwise it will become outdated. Support: /mein-shop/p/datenschutzrechtliche-verarbeitung