階層

1. Origins, structure, and basic meaning

• Structure: The written form is 階層, read かいそう. Elements for levels and layers combine to denote tiers in an organization or classification system.
• Basic usage: 三つの階層 describes organizational levels divided by role, while 分類階層 describes the hierarchy of biological classification.

2. Common pitfalls and similar expressions

• Three role-based levels
  • The organization is divided into three levels according to role. Example: この組織は役割に応じて三つの階層に分かれています。 — This organization is divided into three levels according to role.
• Classification guiding an exhibit
  • Exhibits are arranged according to a biological hierarchy. Example: 展示は生物の分類階層に沿って配置されています。 — The exhibits are arranged according to the hierarchy of biological classification.