The model that addresses the situation wherein one group is not affected by another group using
specific commands is called the:

A.
Information flow model

B.
Non-interference model

C.
Composition model

D.
Clark-Wilson model

Explanation:
In the non-interference model, security policy assertions are defined in the abstract. The process of
moving from the abstract to developing conditions that can be applied to the transition functions
that operate on the objects is called unwinding. * Answer “Information flow model” refers to the
information flow model in which information is categorized into classes, and rules define how
information can flow between the classes. The model can be defined as [O, P, S, T] where O is the set
of objects, P is the flow policy, S represents the valid states, and T represents the state transitions.
The flow policy is usually implemented as a lattice structure. * The composition model, answer
Composition model, investigates the resultant security properties when subsystems are combined.