Affinity diagrams are brainstorming exercises that can be used in situations where a solution is not readily available, many variables have to be reckoned, and concepts and ideas need to be discussed. Root causes of failure modes can also be identified easily.
Affinity diagrams are great tools for understanding large amounts of information. By working backward to probe broad themes, an insight can be visualized in which you could not find these details otherwise.
Using the affinity diagram approach discovers hidden linkages. The affinity diagram precisely gives a vista vision of hidden information.
Relations Diagrams show different relationships between factors, areas, or processes. They are worthwhile as it makes easy to pick out the salient factors adequately.
There are four types of Hierarchy Trees, namely – Function hierarchy tree, Data hierarchy tree, Notes hierarchy tree, and Attribute hierarchy tree.