4Plus provides state-of-the-art software engineering services. As an engineering firm with a staff of 80, we have been a successful provider of our services over the last fifteen years. The development of complex medical equipment and applications is our core competency. We develop X-ray-devices, lithotripters, lasers for dermatology and ophthalmology, driver and control systems for C-arms, surgical tables, embedded and PC applications and more. The 4Plus product solution add4Q is a quality suite for efficient requirement, test and documentation management.