Without regard for physical storage and representation, logical data modeling portrays the arrangement of data and its interrelationships. Why is it beneficial to create logical data models? What is the connection between a DFD's data storage and the logical data model of some or all of the systems under consideration?

Without regard for physical storage and representation, logical data modeling portrays the arrangement of data and its interrelationships. Why is it beneficial to create logical data models? What is the connection between a DFD's data storage and the logical data model of some or all of the systems under consideration?

Fundamentals of Information Systems

8th Edition

ISBN:9781305082168

Author:Ralph Stair, George Reynolds

Publisher:Ralph Stair, George Reynolds

Chapter8: Systems Development

Section: Chapter Questions

Problem 8SAT: Data modelling is most often accomplished through the use of a(an) ________________. a....

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Data modelling is most often accomplished through the use of a(an) ________________. a. entity-relationship diagram b. data-flow diagram c. functional decomposition diagram d. activity diagram
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