One of the chief virtues of a Web server-based document assembly system is the reduced cost of maintaining hundreds of workstations. By centralizing most of the processing onto the server, you eliminate the installation and maintenance cost of servicing hundreds of workstations. DealBuilder, Exari, and Perfectus are zero-footprint solutions and can be run in any Web browser. By contrast, QShift requires the installation of a local fat client and relies on integration with Microsoft Word. For a more detailed review, see below.