OpcDbGateway represents a software product that can be categorized as a SCADA system (Supervisory Control and Data Acquisition). The basic feature is the data acquisition from external devices (sensors, actuator, programmable machines...), data processing, data storage in process databases and files, delivery of processed data to other applications. The system by its structure, based on paralel event data processing, periodical or single-shot launching of external programs and scripts at specified time, allows the user to build simple or complex applications for data mining and processing, logging, alarms, generating printed reports, control and monitoring of processes in a user-friendly and easy way. Usage of OpcDbGateway - summary * monitoring, management, control, processing and data archives from technology * processing and alarm management * generating reports * starting external programs * data provider between more OPC servers * interface between external OPC servers and a database system * executing of SQL commands for data manipulation in process databases * multiple database connections to process databases at the same time * sending of status information about monitored processes via e-mail