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How do Troverlo subscriptions work? (Internal)

Overview on how Troverlo uses subscriptions

Summary

Each Asset when in the Active state will have both a Tag and a Subscription associated.
The subscription follows a fair costing model since we have pre-paid long-duration subscriptions.

Tags, subscriptions, and observations are tied to an Asset.

Subscriptions are NOT tied to a Tag, nothing is tied to a Tag. 

Troverlo subscriptions are defined by the Tag Type.

There are 4 Tag and Subscription Types:

  1. TT - Troverlo Tag
  2. TTi - Troverlo Tag IoT
  3. TTR - Troverlo Tag Reader
  4. TTA - Troverlo Tag Autonomo
The subscription is created when a Tag is associated with an Asset.

Attributes of a Subscription

States

  1. Available - If a subscription is not associated with an Asset

    1. (ie A Tag must be attached to an Asset for the Asset to have a subscription)

  2. Utilized - If a subscription is associated with an Asset

    1. (ie A Tag must be attached to an Asset for the Asset to have a subscription)

  3. Expired - if a subscription has expired (ie it has not been renewed), but a Tag is still associated with an Asset.

    1. The expiration of a subscription causes the Tag to change state to Disabled and the Asset to change state to Deactivated.

  4. Deactivated - if a subscription is deactivated for cessation of service and can no longer be used but it must be maintained in the system for auditing purposes

Subscription Duration

Subscriptions have a 1-year expiration from the time of the creation.

Fair Costing Model

Any subscription or any tag in the available state can be assigned to an Asset.
Subscription algorithm:
  1. Create a new subscription if there are no subscriptions of the same type in the Available state
  2. If there are ANY of the appropriate subscription type available, reuse those first.
  3. When an Asset is moved to the Archive state (a Tag is removed), the subscription is disassociated with the Asset and it's state is changed to the Available state

References