Question

8. Which of the following symbols is (are) not the Data Flow Diagram (DFD):
(A) a square
(B) an open rectangle
(C) a circle
(D) a triangle​

Answer 1

Answer:

(B) an open rectangle

Explanation:

is a correct answwer

Answer 2

Answer:

An open Rectangle

Explanation:

• A data flow diagram is defined as “the way of representation of data flowing through the process or system known as information system”.

• The origin of the Data flow diagram was originated in the year 1970 from a activity diagram, which was used for finding the structured analysis and design diagram.

• It provides the information with regards to the input and output of entity and the process. The flow diagram excludes the process of control flow because there will be no rules of decisions and loops present.

• A Data flow Diagram (DFD) consists of 4 components. They are:

1) process

2) flows

3) warehouse

4) terminators.

The Data flow diagram is represented in three shapes that are square, the circle and the triangle.

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