also: データかいそう
data hierarchy
Technical computing term for the structured organization of data, such as parent-child relationships in databases or file systems.
When designing a data hierarchy, it is necessary to clearly define parent-child relationships.
In this system, the data hierarchy is too complex and difficult to manage.
Shorter compound form without の; also used in technical contexts.
Compound of データ (data, from English) and 階層 (hierarchy, layer). The form with の is a standard noun phrase, while the form without の is a compound noun.