Flip a coin, heads, or tails. The probability that it will come up heads is 50%; there are only two sides.  Flip that same coin again, the same probability, 50%.  However, if we say that success is two successive heads (or tails) that is different. The probability of two consecutive heads is the product of […]

Testing Complex and Embedded Systems What set of conditions could cause this event to occur? When we have elicited all we can from the customer about fault information, it is time to proceed further in our analysis. This next step requires investigation of the design to understand how the symptom of failure described could happen […]

Not all television is not mind numbing.  I enjoy The History Channel and many other similar channels as these are not exactly learning opportunities but close.  However, my son turned us on to a show called House on Netflix[1] and it is very interesting. House (also called House, M.D.) is an American television medical drama that […]

This may or may not be a true story, but I promise it happens every year.  We start with the customer organization and a supplier that the customer refers to as a partner supplier. This “partner” supplier collaborates with the customer to develop custom components for a larger system the customer sells to their customers. […]