A short survey is given of the aims and methods used in embryo researc
h. Ethical aspects of research and possible applications lead to the c
onclusion that questions are raised that concern society as a whole. I
n the last decade the awareness in this respect has increased. Methodo
logy of broad ethical judgement and decision making however is still i
n a stage of development. It is suggested to strive for: 1) clarificat
ion of fundamental views on values in (human) life, 2) answering the q
uestion: who decides about what, and 3) determination of decision maki
ng procedures.