Figure TB-4

question 11

Essay

Figure TB-4.3 shows a context diagram a cash sales system.The diagram intentionally violates several of the guidelines and other techniques presented in the text for drawing data flow diagram.Required:
Identify as many of the errors in data flow diagram construction as you can.In the diagram, place consecutive numbers (each in a circle) next to the points at which the errors exist.On your solution sheet, list the numbers and write a one- to two-sentence description of each error and what the correct procedure should be.Error 1 is provided as an example of how to construct the solution.

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Definitions:

Abstract Ideas

Concepts that are not tangible or concrete, often involving complex thought processes, theories, or philosophical notions.

Inanimate Objects

Objects that lack life or consciousness, typically referring to items that are not alive.

Formal Operational Stage

The last of Jean Piaget's four stages of cognitive development, where abstract, logical thinking develops.

Concrete Operational Stage

A developmental phase in Piaget's theory of cognitive development, from approximately 7 to 11 years old, where children gain the ability to think logically about concrete events.