The figure shows a progression from "Client" through "Firewall" to "Web Services." From there, the arrows pass to either "ArcIMS Tasker Monitor" or through another "Firewall" to the section of a "Data Server" box labeled "SQL Stored Procedures." Arrows from the "ArcIMS Tasker Monitor" continue through the second firewall to the same "Data Server" box but to a section labeled "ArcSDE." Return arrows indicate a reverse path.