  Current advances in research, development and application of artificial
intelligence (AI) systems have yielded a far-reaching discourse on AI ethics.
In consequence, a number of ethics guidelines have been released in recent
years. These guidelines comprise normative principles and recommendations aimed
to harness the "disruptive" potentials of new AI technologies. Designed as a
comprehensive evaluation, this paper analyzes and compares these guidelines
highlighting overlaps but also omissions. As a result, I give a detailed
overview of the field of AI ethics. Finally, I also examine to what extent the
respective ethical principles and values are implemented in the practice of
research, development and application of AI systems - and how the effectiveness
in the demands of AI ethics can be improved.
