Diagrammatic representation of different position in hierarchy of an institution showing the channel of communication and authority is called?

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E6 Nursing_Management_and_leadership_Johny_Kutty_JosephCbs_Publishers (pp 16-364 of 374) p. 70-72
E6 Textbook of Nursing Management and Leadership I. Clemen — Subpart A (pp 26-327 of 982) p. 240-242
Practise the full IGNOU Post B. SC. Nursing entrance -2021
Attempt every question from this paper in a timed mock, then review the full solution for each one.