DIRECTING OPERATION OF COMPUTER SYSTEMS.

摘要

A computer-based training system (CBT) has one or more Application Translation Units (ATUs 340), a message engine (350), and a script engine (320). For one or more target application (360) of interest, an ATU is provided for processing events specific to that application, thereby trapping events and translating them into abstract messages or "meta-messages" for conveying information about a particular event to the system. A general operating system ATU is also provided for trapping general system events. Translated event messages are processed by event handlers (450). System or application-specific messages which are not of interest are simply allowed to pass through. The individual handlers dispatch their respective messages to the script engine (320), which includes instructions for directing the activity of the target application(s). The script engine (320), in turn, acts upon an incoming message. The dispatched message triggers appropriate action (as specified by instructions within the script).