XRAE is utilized in simple stand alone products, like a trailer brake light controller, to more complex high perfromance products like antilock braking systems and trailer sway controllers, tank gauging systems, including various display devices, network routers and gateways.  In addition to traditional consulting services we also utilize various product liceinsing arrangements, including  developing the product our customer then manufactures, markets and sells and then provides RTOS a percentage of sales in return for our development expenses and continued product support.  In many cases we are our customers sole product develeopment department.  We often consult with our customer's engineers on their first XRAE product to facilitate efficient technology transfer and then radically reduce our consulting services on the following products since the XRAE learning curve is relatively short.