Perfect Duties:Perfect duties are moral obligations that have a specific, enforceable requirement for how they must be fulfilled, such as the duty not to lie or the duty to keep promises.
Deontology:Deontology is an ethical theory that judges the morality of an action based on the action's adherence to a rule or rules, rather than the consequences of the action.
Virtue Ethics:Virtue ethics is an approach to ethics that emphasizes the virtues or moral character, rather than the consequences of actions or the rules governing them.