hierarchical structure
hierarchical data structure

Especially at a big firm, it's much easier to stick with a more hierarchical structure.

Sometimes, a set comes equipped with a natural hierarchical structure.

The universe can be viewed as having a hierarchical structure.

That taught me a lot about how you actually get people to operate within a hierarchical structure.

And even the new methods we tried were still based on the hierarchical structure.

Some people think of a university as a corporation with a strict hierarchical structure.

A hierarchical structure is needed with narrow span of control at each and every level.

Core states benefit from the hierarchical structure of international trade and labor.

The order with its elements form a hierarchical structure in n levels.

The world is a hierarchical structure with at least four 'levels of being'.