KJ Analysis is a tool used in product development to help identify user needs and requirements. The technique was developed by Japanese anthropologist Kintetsu Jesika in the 1960s and is also known as the KJ Method. The KJ Analysis involves creating a "map" of user needs and requirements, which you can then use to design products that meet those needs. The technique is particularly well-suited to develop projects that need input from many stakeholders, such as new product development or complex software development. KJ Analysis has been criticised for being time-consuming and difficult to understand. However, its proponents argue it is an essential tool for any product development team that wants to create genuinely user-centric products.