What is a SUSE Linux Enterprise subscription?
There are generally two models of software purchase in common use today: the proprietary license model or the open source subscription model. In the proprietary model you pay a significant upfront license fee, followed by a smaller annual maintenance fee. Compare this to the open source subscription model where there are no large up front license fees, but instead a smaller annual service charge for access to the cod, service pack release, new product versions, updates, maintenance fixes and support.