← All Models
Open the ComDyn wizard
Model published
Vodacom legacy-device and IoT migration dynamics
Modeled 104-week target-estate flow for legacy consumer and M2M connections. Population and rates are scenario assumptions, not operator telemetry or a forecast.
Compartments
| Name | Color | Initial Fraction |
|---|---|---|
| 2G/3G-only | — | 0.92 |
| Upgrade eligible | — | 0.04 |
| LTE/VoLTE or NB-IoT provisioned | — | 0.01 |
| Stable on modern access | — | 0.02 |
| Exception queue | — | 0.01 |
| Churned or disconnected | — | 0 |
Flows
| From | To | Rate |
|---|---|---|
| legacy_only | upgrade_eligible | device_upgrade * legacy_only |
| upgrade_eligible | provisioned | activation * upgrade_eligible |
| provisioned | stable_modern | stabilize * provisioned |
| legacy_only | exception | incompatible * legacy_only |
| provisioned | exception | activation_fail * provisioned |
| stable_modern | exception | regression * stable_modern |
| exception | upgrade_eligible | remediate * exception |
| legacy_only | churned | churn * legacy_only |
| upgrade_eligible | churned | churn * upgrade_eligible |
Parameters
| Name | Label | Default | Range |
|---|---|---|---|
| device_upgrade | Weekly legacy-to-eligible conversion rate. | 0.025 | 0.005 – 0.08 |
| activation | Weekly activation completion rate. | 0.12 | 0.04 – 0.3 |
| stabilize | Weekly post-activation verification rate. | 0.2 | 0.08 – 0.5 |
| incompatible | Weekly new exception rate from the legacy estate. | 0.004 | 0.001 – 0.02 |
| activation_fail | Weekly activation-to-exception rate. | 0.02 | 0.005 – 0.08 |
| regression | Weekly stable-service regression rate. | 0.001 | 0 – 0.01 |
| remediate | Weekly exception remediation rate. | 0.08 | 0.02 – 0.3 |
| churn | Weekly modeled churn/disconnection rate. | 0.0015 | 0 – 0.01 |
User-Facing States
Legacy-only connections legacy_only * N
In the migration system (upgrade_eligible + provisioned + exception) * N
Stable on LTE/VoLTE or NB-IoT stable_modern * N
Churned or disconnected churned * N
Build your own like this
The ComDyn wizard takes you from a blank canvas or template to a running simulation — then publish it back here.