Ethics

Ethics (Greek ethika, from ethos,"character,""custom"), principles or standards of human conduct, sometimes called morals (Latin mores,"customs"), and, by extension, the study of such principles, sometimes called moral philosophy. This article is concerned with ethics chiefly in the latter sense and is confined to that of Western civilization, although every culture has developed an ethic of its own. Ethics, as a branch of philosophy, is considered a normative science, because it is concerned …

…It is different though, in that it mentions "regulate its behavior" as opposed to judging the behavior to be "right or wrong". From the above definitions we see a common theme, all three definitions mention either a system or set of moral principles or standards. The first talks about judging, whereas the second about conforming and the third regulating human actions or proposals. (Source : Engineering And Society : An Australian Perspective by Johnston, Goetelow, Jones, Fourikis