A Logical Model Used to Gather Information About an Existing

Multiple Choice

A Logical model used to gather information about an existing system

A) comes only after a physical model of the existing system is created.
B) describes how a system actually works,rather than how it should work.
C) illustrates how a system functions by describing the flow of documents and computer processes.
D) illustrates what is being done,regardless of how that flow is actually accomplished.