101 License Models – Metered License Models

A while ago, we wrote a blog post entitled 101 license models.  Since that time we followed up with posts on unrestricted license modelsnodelocked license modelsfloating license models, and token-based license models.  In this post, we explore the fifth set of license models described in that post – the Metered License Models.

   Metered License Models

To review, a metered license model allow you to consume a resource when your program runs. Your customer can perform an action “N” times, or for a fixed amount of time.  These licenses are usable by anyone who can contact the license server.  Metered licenses can have any of the following attributes:

Ways to use Metered License Models

Metered licenses have 3 main uses:

  • counting the number of invocations of a product
  • keeping track of how long a product runs, or
  • counting events within a product (e.g. pages printed, database lookups, etc).

In the first case, the license server decrements the meter each time the product checks out a license.  For keeping track of how long a product runs, the server performs a decrement to the meter at a specified interval.  Finally, for counting events, your software would perform a checkout request when the event happens.

A metered license model gives you control over the software which isn’t available with nodelocked or floating licenses. Metered License Models provide true consumptive licensing.

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