noun
divisional system; company with autonomous divisions
A corporate structure where a company is organized into self-contained divisions (事業部), each operating with a degree of autonomy. Common in large Japanese corporations.
当社は事業部制を導入し、各部門の独立性を高めた。
Our company introduced a divisional system and increased the independence of each department.
事業部 refers to a single autonomous division, while 事業部制 is the overall system or structure of having such divisions.
Compound of 事業部 (じぎょうぶ, 'business division') + 制 (せい, 'system'). The term reflects the adoption of divisional organizational structures in Japanese companies.