Compartmentalization (noun)

1. The division of a complex system, organization, or concept into smaller, more manageable parts.
2. The practice of separating different aspects of one's life or work, so that they do not interfere with each other.

Origin:

Early 20th century: from compartment + -ization.

Examples:

1. The compartmentalization of the brain allows for specialization of function in different areas.
2. The company uses a system of compartmentalization to protect sensitive information and prevent data breaches.
3. The scientist's approach to research involved compartmentalization, allowing him to focus on one aspect at a time.
4. The athlete used compartmentalization to keep his personal life separate from his professional life.
5. The political system is based on a principle of compartmentalization, dividing powers between different branches of government.