For examples, if you are a doctor and have patient that has a disease that will end his life, rule utilitarianism would say that you must tell your patient that he is dying because there is a generalized rule of telling the truth, and you must follow it, but on the other hand act utilitarianism would say that lying is the best option on this situation. The only intrinsic value for these theories is happiness. The difference between act and rule utilitarianism is that act utilitarianism first looks at the consequences of an act, and decides which is the better option depending on which one brings the greatest amount of happiness. Rule utilitarianism first look at the consequences of all the possible rules to follow, and then they follow the rule that leads to the greatest
For examples, if you are a doctor and have patient that has a disease that will end his life, rule utilitarianism would say that you must tell your patient that he is dying because there is a generalized rule of telling the truth, and you must follow it, but on the other hand act utilitarianism would say that lying is the best option on this situation. The only intrinsic value for these theories is happiness. The difference between act and rule utilitarianism is that act utilitarianism first looks at the consequences of an act, and decides which is the better option depending on which one brings the greatest amount of happiness. Rule utilitarianism first look at the consequences of all the possible rules to follow, and then they follow the rule that leads to the greatest