Holistic approach is an integrated (holistic) view of the system, in our case, organization. System properties can’t be determined only by the properties of its parts. On the contrary, a whole affects the structure and operation of its parts.
This principle was first said by Aristotle in “Metaphysics”: “The whole is more than the sum of its parts.”
Use of the holistic approach in practice: We therefore examine the organization as a whole, not only its subsystems (parts). The principle of emergence applies. The phenomena at subsystem level don’t correspond to the phenomena at the level of the whole.