also: データかいそう
noun
data hierarchy
Technical computing term for the structured organization of data, such as parent-child relationships in databases or file systems.
データの階層を設計する際は、親子関係を明確に定義する必要がある。
When designing a data hierarchy, it is necessary to clearly define parent-child relationships.
このシステムでは、データ階層が複雑すぎて管理が難しい。
In this system, the data hierarchy is too complex and difficult to manage.
データ構造 (data structure) refers to the specific arrangement of data within a program, while データの階層 emphasizes the hierarchical relationships between data elements.
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.