Abstract: A method of assessing a computer program under actual working conditions according to one embodiment comprises executing the computer program multiple times under actual working conditions, in response to each unhandled exception encountered during execution of the computer program, creating a corresponding stack frame signature to characterize the state of the program, and comparing the stack frame signatures to determine which unhandled exceptions are likely to have resulted from similar features.

Abstract: A method of assessing a computer program under actual working conditions according to one embodiment comprises executing the computer program multiple times under actual working conditions, in response to each unhandled exception encountered during execution of the computer program, creating a corresponding stack frame signature to characterize the state of the program, and comparing the stack frame signatures to determine which unhandled exceptions are likely to have resulted from similar features.

Abstract: A method of assessing a computer program under actual working conditions according to one embodiment comprises executing the computer program multiple times under actual working conditions, in response to each unhandled exception encountered during execution of the computer program, creating a corresponding stack frame signature to characterize the state of the program, and comparing the stack frame signatures to determine which unhandled exceptions are likely to have resulted from similar features.

Abstract: A method of assessing a computer program under actual working conditions according to one embodiment comprises executing the computer program multiple times under actual working conditions, in response to each unhandled exception encountered during execution of the computer program, creating a corresponding stack frame signature to characterize the state of the program, and comparing the stack frame signatures to determine which unhandled exceptions are likely to have resulted from similar features.

Abstract: A method of forming a stack signature responsive to execution of a computer program in a digital computer according to one embodiment comprises halting execution of the computer program, tracing the program's call stack to determine a series of stack frames resulting from execution of the program, capturing a selected metric with respect to each stack frame in the series, encoding each captured metric into a corresponding symbol, and assembling the series of encoded symbols into an ordered list thereby forming a stack frame signature that reflects generally the execution of the computer program.

Abstract: Systems and methods for synchronizing a web application service on a server with a user computer so that users are not required to log-in to access their data are described. An installed product application programming interface (IPAPI) is provided on the web server that is configured to associate a user ID associated with the user of the user computer with a machine ID associated with the user computer. The credentials are automatically transmitted to the web application through cookies from a browser at the user computer to the web application so the user does not have to log-in to the web application service or at their computer.

Abstract: A method of forming a stack signature responsive to execution of a computer program in a digital computer according to one embodiment comprises halting execution of the computer program, tracing the program's call stack to determine a series of stack frames resulting from execution of the program, capturing a selected metric with respect to each stack frame in the series, encoding each captured metric into a corresponding symbol, and assembling the series of encoded symbols into an ordered list thereby forming a stack frame signature that reflects generally the execution of the computer program.

Abstract: A method of assessing a computer program under actual working conditions according to one embodiment comprises executing the computer program multiple times under actual working conditions, in response to each unhandled exception encountered during execution of the computer program, creating a corresponding stack frame signature to characterize the state of the program, and comparing the stack frame signatures to determine which unhandled exceptions are likely to have resulted from similar features.

Abstract: A digital computer call stack or combined call stack and data stack is traced and analyzed following the occurrence of an unhandled exception or crash. Stack frame sizes and other artifacts are used to form a distinctive stack signature that generally reflects execution of the program up to the point of failure, without being finely detailed. Stack signatures can be associated with program bugs, and stack signatures collected from other failure instances, at other times or on other machines, can be conveniently compared for recognizing particular types of failures, without access to source code and without detailed study of memory dumps.

Abstract: A digital computer call stack or combined call stack and data stack is traced and analyzed following the occurrence of an unhandled exception or crash. Stack frame sizes and other artifacts are used to form a distinctive stack signature that generally reflects execution of the program up to the point of failure, without being finely detailed. Stack signatures can be associated with program bugs, and stack signatures collected from other failure instances, at other times or on other machines, can be conveniently compared for recognizing particular types of failures, without access to source code and without detailed study of memory dumps.