Hosted Business Management - Licensing and Deployment
You can change licensing and deployment models as your business needs change. The four licensing and deployment choices for Microsoft Dynamics GP, NAV, AX and SL are:
Hosted with subscription licensing
Subscribe to the application and access it via the Internet.
Hosted with perpetual licensing
Own the application entirely but it resides at a service provider’s data center.
On-premise with subscription licensing
Keep the Microsoft Dynamics application on your site yet pay on a per month per user basis while a service provide manages the system remotely