The approach to machinery design and the technologies used have changed significantly since 1989, how is this reflected in the requirements of the directive?

Is it true that there are many changes in the way machines are designed and constructed with increased use of electronic and software based control systems, modular construction of production lines and increased use of robotic systems. There are many changes in the essential requirements reflecting such changes particularly related to control systems and devices.

Defying the conditions

http://www.pilzamerica.com/articles/Pilz-Defying-the-conditions.pdf