0498130-A2 is referenced by 163 patents and cites 4 patents.

Each component (101) of a plurality of interacting system components is associated with a version identifier (102). The version identifier (102) is stored in a location accessible by the other components. Each component independently reads the version identifier of every other component with which it must interact, and compares this value to an internally stored compatibility record (103) to determine whether the other component satisfies requirements for compatibility with the verifying component. Any component which detects an incompatibility signals an error to the system. In the preferred embodiment, the components are software modules, and the version identifier and compatibility record contain integer values. The compatibility record value represents the minimum level required of the module being verified for compatibility with the verifying module.; Compatibility verification is accomplished by comparing the actual level of the module being verified with the minimum level in the compatibility record. If the actual level is equal to or greater than the minimum level, the module being verified satisfies compatibility requirements.

Title
Apparatus and method for verifying compatibility of system components.
Application Number
EP19910403349 19911210
Publication Number
0498130 (A2)
Application Date
December 10, 1991
Publication Date
August 12, 1992
Inventor
Simonson Douglas Lee
US
Ingebretson Mark Edward
US
Furtney David Allen
US
Assignee
Ibm
US
IPC
G06F 09/44
G06F 09/44
G06F 03/12
G06F 09/06
G06F 09/44
G06F 03/12
G06F 09/06
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