License Terms for Software Use

For licenses, 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 License. A perpetual license is valid for an unlimited period of time. Some license types may require you to renew and reactivate on a regular basis.
Trial License. A trial license is valid for the evaluation period that is stated in the software. No license number is required.