hierarchical structure; layered structure
Refers to a structure organized in levels or layers, often used in technical, organizational, or abstract contexts.
This organization has a hierarchical structure.
The data is managed in a layered structure.
階層 means 'hierarchy' or 'layer' as a concept, while 階層構造 specifically refers to the structure or system itself.
ヒエラルキー is a loanword often used for social or organizational hierarchy, while 階層構造 is a broader term that can also apply to technical or abstract layers.
Compound of 階層 (hierarchy, layer) and 構造 (structure).