Start with the service
A framework for checking whether a marketed slice is available to your devices, locations, applications and support model.
Write the application outcome, affected users or devices, geographic area, traffic profile and failure consequence before choosing a technical mechanism.
Separate requirements from mechanisms
Latency, availability, privacy, addressing, reachability, mobility and cost are requirements. A slice, private APN, VPN, local UPF or private network is a mechanism. More than one mechanism may satisfy the same requirement.
Demand observable evidence
Every material promise should map to a test, telemetry source, owner and acceptance threshold. Avoid relying on unqualified terms such as guaranteed, isolated, prioritised or ultra-low latency.
Plan lifecycle and change
Include firmware updates, SIM replacement, device certification, network upgrades, coverage changes, contract renewal and application migration in the operating model.