AMS (agency management system) (definition)
The operating system of an agency: client records, policies, accounting, carrier downloads, and workflow in one platform.
An agency management system is the platform an agency runs on: client and policy records, document management, accounting, carrier downloads, and the workflows that connect them. It is the system of record for the book of business and the operational memory of the firm.
AMS choice shapes daily economics: carrier download depth determines how much rekeying the service team does; reporting quality determines what management can actually see; and integration fit determines whether ancillary tools help or create swivel-chair work.
Migrations are notoriously expensive in time and data quality, which is why the realistic comparison is between total switching cost and durable workflow gain, not between feature lists.