Impact mapping, introduced by Gojko Adzic in 2012, is a graphical planning technique that helps product management teams focus on achieving their primary business goals by mapping features to desired impacts. It emphasizes collaboration and outlines four key questions to guide decision-making: the business objective, the actors involved, the actions they should take, and the deliverables needed to support them. This method enhances team alignment, prioritizes essential tasks, and creates a shared understanding among team members.