Device identity and lifecycle
Every device needs a unique, verifiable identity; a shared credential cannot be managed at scale. Provisioning, updating, replacement after failure and decommissioning are designed as one lifecycle.
- Provisioning runs through an automated flow, not by hand
- Identity belongs to the device, not to the fleet
- Identity transfer on replacement is defined
- A decommissioned device loses access immediately
Data model and meaning
Devices from different vendors report the same measurement under different names and units. Without a common data model, every new device type creates another integration project.
- Units and time zones are normalized at source
- A new device type maps to the model, not to code
- Measurement meaning is defined in a dictionary
- Version changes preserve backward compatibility
Edge processing and connectivity
Assuming connectivity is always available does not survive the field. Buffering, retransmission and prioritization at the edge are part of the design; a critical alarm should not queue behind bulk telemetry.
- Critical alarms travel at their own priority
- Buffering engages at the edge when the link drops
- Retransmission does not create duplicate records
- Link cost is planned alongside data volume
Integration and firmware updates
A platform does not leave data where it lands; it feeds maintenance, production and business intelligence systems. Remote firmware update is a security requirement: a fleet that cannot be updated is a gap that cannot be closed.
- Updates roll out in stages and can be reversed
- A failed update does not leave the device unusable
- Integration carries feedback, not one-way flow
- Interface versioning is independent of the fleet