Abstract: In a method and system for controlling a manufacturing process statistical process control data or other statistical indicators of performance from the production process and specification data are displayed in both tables and bar-type graphs. The graphic display enables the production manager to easily see both out of specification activity and trends so that he can adjust the manufacturing process accordingly before the production run is completed.

Abstract: A computer system, including at least one host (processor and operating system), a channel subsystem and at least one switch (together with an associated switch controller) for switchably connecting an I/O device (together with an associated I/O device control unit) to a host via said channel subsystem, in combination with means for dynamically managing I/O connectivity in said computer from each host. The I/O manager's functions are centralized at the host level across the computer system. Each host is responsible for an instance of the manager.

Abstract: A method of creating a data structure or map describing the I/O configuration and of verifying and resolving errors in configuration data in a system in which processors are coupled to one another or to device control units either directly or through a dynamic switch by way of links attached to link adapters of respective end units. Each pair of unit link adapters coupled to the respective ends of a link exchanges information identifying the unit and the adapter on that unit. A physical configuration map indicating the actual physical system configuration is constructed from such "nearest neighbor" information. This physical configuration map is compared with a logical configuration map indicating the user-defined logical system configuration to determine the existence of any discrepancies therebetween, and one map is conformed to the other as appropriate.