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Model vs. Representation
publish date: 2026/06/08 03:53:18.267149 UTC
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True or False: A model of a system is the same as a representation of that system — both maintain all information about the entity being described.
Correct Answer
False
Explanation
A model is an abstraction of the system, not a representation. A representation maintains all information about the entity (e.g., translating a book from English to Italian is a representation — all information is preserved). A model deliberately simplifies and picks out only the most salient characteristics, intentionally omitting detail to make the system easier to understand.
Reference
Software Engineering, Ian Sommerville, 9th edition