Licence Terms for Software Use

For licences, the terms for using the TI software are specified:

Subscription. A subscription is valid for a limited period of time. The time period can be a duration or defined with an end date.
Perpetual Licence. A perpetual licence is valid for an unlimited period of time. Some licence types may require you to renew and reactivate on a regular basis.
Trial Licence. A trial licence is valid for the evaluation period that is stated in the software. No licence number is required.