perpetual vs subscription

Particular Perpetual License Subscription License
Software License Fee One time payment. Validity – Perpetual. Entitlement – Software license alone. Annual support, updates and upgrades are not included. Annual, recurring payment. Validity – 12 months Entitlement – software license, support, updates and upgrades
One-year Upgrade Service Should be bought separately (will be valid for one year from the date of purchase) Included in subscription license fee
Initial support period included in software license fee [Months] 0 12
Upgrade fee Paid at time of upgrade Included in subscription license fee