The present invention provides catalyst components comprising a compound having a weakly coordinating anion salt and a reactive cation, in particular a compound of the formula MxQy. To evaluate applications for security vulnerabilities, a coverage monitoring system generates a directed graph of the application running on the embedded device. An image of said pattern is then recorded and compared with a reference image of an ideal pattern for locating a defect within said pattern. The common platform is a plug and play board that, once attached to the host computer, operates with little or no human intervention.