Fulfilled from a Prepaid License Pool
In this method, the user buys a prepaid number of license-days from the software publisher. The user can then fulfill a license using a partial amount of the total license-days for the given borrow period, node-locked to a particular system. For example, in preparation for a business trip (or even during a business trip), the user fulfills a license that expires in five days that is node-locked to their laptop. Each fulfillment can be node-locked to a different system (or even multiple times to the same system), thus allowing mobility of license usage within the pre-paid number of license-days.
This model is like pay-per-use because each fulfillment is made from a decreasing number of license-days. It is different than other pay-per-use models because, once node-locked to a system, that system is allowed unlimited use of the application until the license expires. This short-term license cannot be returned early; once fulfilled, those license-days cannot be refunded. Other pay-per-use models charge based on the number of times the application is used.