having multiple levels, layers, or echelons, such as in administration or complex systems

deep level; deep-seated; in-depth; fundamental

neatly arranged and logical in organization or sequence

arranged in clear levels or distinct parts; well-organized with a logical sequence

to have one's hair cut in layers

Maslow's hierarchy of needs, a theory in psychology proposed by Abraham Maslow

A sales model where products are sold directly to consumers and sellers earn bonuses for their own sales as well as for recruiting new members into the sales network.

a business model or organizational structure for distributing products through multiple tiers of representatives or distributors