Question

In a physical data flow diagram (DFD), a bubble or circle could be used to specify each of the following except:

a. where a process is performed
b. how a process is performed
c. by whom a process is performed
d. what process is performed

Answer 1

In a physical data flow diagram (DFD), a bubble or circle specifies where, by whom, and what process is performed, but not how a process is performed. The DFD is a tool different from a circular flow diagram, which is used in economics to illustrate market activities between firms and households.

Step-by-step explanation:

In a physical data flow diagram (DFD), a bubble or circle is generally used to represent a process, detailing what process is performed. However, the bubble does not specify how a process is performed, which is excluded from the options. The other choices, such as where a process is performed, by whom a process is performed, and what process is performed, are all valid representations within the DFD's conventions.

Comparatively, a circular flow diagram is a simplified representation used in economics to depict economic activity between different sectors of the economy. In this diagram, firms produce goods and services, which they sell to households. The outer circle illustrates the product market whereas the inner circle represents the labor market. The circular flow shows households demanding and supplying labor to firms for wages, salaries, and benefits.