The system structure is client/server. You click on a web site link to start the web client. The client sends and receives requests to/from our Host Service. The Host Service communicates with the the SQL Server database.
The Host service (middle-tier) integrates with your data services (Custodian, Bloomberg, etc.), or you can run those updates yourself.
A file share service enables desktop clients to access the same files the middle-tier uses (and vice versa).
Many prefer the simplicity of our hosted SaaS implementation.