Levels of Host Integration

The diagram illustrates the various levels of host integration performed by HIS 2004. PC workstations (pictured at the top) either connect directly to HIS 2004 when doing 3270 (for mainframes) or 5250 (for AS/400) terminal emulation or connect to an IIS Web server or some other server application which in turn connects to HIS 2004. IIS-based Web applications or Web services may link with another middle-tier application that performs business logic functions, or may link to a legacy host through HIS 2004. SQL Server can also exchange or synchronize data with host systems through HIS 2004.

The middle block represents the key functions that HIS 2004 performs.

The bottom bars represent IBM-compatible mainframe or AS/400 applications with which HIS 2004 can integrate. The large arrows show the relationships between the host services and the HIS 2004 components that integrate with them.

The network connection between the LAN and the host is implemented either directly through a TCP/IP connection (to IP-enabled hosts) or indirectly by using the HIS 2004 server to perform conversion between TCP/IP and SNA.