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Lucent Technologies Inc.

Paul Jay Lucas

Stephen Gregory Eick

Graham John Wills

Jeffrey Donald Schmidt

A technique for interactively analyzing system log-files. System log-files, which are monitored by technical personnel and systems specialists to determine system performance, status, and software faults, are often generated during various hardware and software monitoring operations. Each log-file contains time stamped reports. This technique is especially useful for analyzing large log-files. A new release of software may contain many incremental versions that must be tested. The testing of each incremental version may generate a log-file containing thousands of reports. Using this technique, reports are correlated, faults are isolated, and temporal patterns are recognized more quickly and efficiently than by using conventional, non-graphical techniques.

Method and apparatus for graphically analzying a log-file

A library of C++ classes for use in writing data visualization programs. The library embodies a general design principle for class libraries: that the classes are partitioned into entity classes and functionality classes. Entity classes in the library specify properties of areas in a display and the functionality classes specify functionalities which the areas may have, for example, being responsive to the mouse or the keyboard or being capable of executing drawing commands. The classes are narrowly defined, and when the C++ programmer specifies a class for an object, he or she can give the object exactly the desired properties by selecting from among the area classes and the functionality classes. Because properties are acquired by inheritance, code generated using the libraries is shorter and faster than code generated using conventional class libraries.

Growing community of inventors

Naperville, IL, United States of America

Paul Jay Lucas