There are many metrics that Adobe has used over the years. The most important of them are the following four:
This is the most common and currently used Adobe license metric. Named User Licensing ties the usage of Adobe apps and services to an individual user. Named licenses require periodic Internet connectivity. Computers must connect to Adobe servers for initial activation, and then at least once every 99 days.
Shared Device Licensing
This a Adobe license type for educational institutions. The license is tied to a device rather than to a user. Anyone who logs onto the device will have access to the installed Adobe program.
The following two license metrics are legacy, but it is important to know about them as customers might continue to be using them – knowingly or unknowingly:
The Adobe program license is tied to the device or specific computer. Users do not need to sign in to access applications.
The Adobe program license is tied to a specific computer. Adobe had created this license type for firms with a small number of users.