Learn in the textbookData Utilization Processing and Business Applications
DefinitionGrouping (グルーピング) is the processing that gathers data by similar traits and divides it into several groups.
ExplanationGroup customers by spending and visit frequency, or products by how they sell, and the traits of each group become easy to compare. People can set the criteria themselves, or the data can be gathered automatically according to how close the values are.
AnalogyLike sorting a messy stack of books onto shelves for fiction, cooking, and travel. Once the shelves exist, you can see at a glance which subject dominates.