AggFlow DM is a program that is installed on your local computer. AggFlow DM communicates with our severs to check license status, open, save and share your work. If you have a Design license, then the work is also saved to a local database on your computer. The work saved to the cloud has the advantage of always being backed up and easily shared with other users, per your instructions. The local database allows you to always access your own work, even when you do not have an internet connection and are working offline with a security key.