Instead of seeing a client as an individual unrelated to other people and organizations in his/her life, social workers tend to view him/her as part of a network of multifaceted interactions. This describes the theoretical foundation of

The ecological perspective

Explanation:

The ecological perspective is the study of the science of ecology in which a person studies the organism and how the organism interacts in the environment. This is the phenomenon in which the researcher investigates the interaction of a person or group of persons in the environment.

The ecosystem is related to the environment of a person in which he lives and to find out how the environment supports people to them. There are many ways through which a person collects information, social data, adaptation and goodness, niche, and self-esteem, etc.  

it continues in business

a is the final ! : )