Self documenting record of instrument activity and error message

Details Self documenting record of instrument activity and error message Self documenting record of instrument activity and error message

1990-09-05

1992-10-13

Teska, Kevin J.

Boots, shoes, and leggings

340679, 346 33R, 364419, 364500, G06F 1521, G06F 1134

Patent

active

051556936

ABSTRACT:
A method of creating a self-documenting logfile which records the status and operation of a substantially computer-controlled device. The method comprises the steps of accepting input commands from a user for controlling the device status and operation; monitoring the device characteristics; detecting deviations in the device status, user inputs, and procedural steps in the device's operation; writing these detected events to the logfile with the date and time of which the detected event occurred; and retrieving the logfile upon user demands for review of the logfile. In order to comply with good laboratory practices (GLP), the method additionally comprises steps for verifying the user input commands by determining the acceptability of the input commands, detecting inadvertent alteration to the logfile and testing the validity of the logfile for invalid data. Steps for providing an enciphering key within the event lines which comprise the logfile in order to detect tampering are also disclosed.

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