The correct answer is Configuration management processes.

Configuration management processes are important organizational practices that govern how systems and components are configured tracked and changed over time. They are governance and lifecycle activities and not a defining characteristic of what is physically or logically inside a system boundary. Defining the boundary focuses on tangible elements and relationships so the configuration process itself does not determine membership inside the boundary.

Data flow and information exchange paths are considered because boundaries must include the components that send receive or process the system s data. Mapping data flows reveals where information crosses trust or control boundaries and helps identify interfaces and services that must be inside the system boundary.

Infrastructure and network connections are considered because physical and logical connectivity creates exposure and trust relationships. Network links hosting locations and other infrastructure elements usually determine whether a resource is treated as internal or an external dependency of the system.

Asset ownership and custodianship are considered because ownership and responsibility affect who manages and enforces controls for an asset. Knowing who owns or is custodian of an asset helps decide whether it is managed within the system boundary or by another organizational domain.

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