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Discuss the differences between a context diagram and diagram 0. Which symbol is not used in a context diagram? provide reference

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 1PSE: For a business of your choice, use a graphics program to develop a data-flow diagram of one of its...

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Concept explainers

Enhanced ER Model

The enhanced ER model is an abbreviation for Enhanced Entity-Relationship (EER) model. As you know, the entity-relationship (ER) model is a pictorial illustration of the relationship between various entities of a domain. In the case of a large amount of data with multiple interrelated entities, the ER diagrams become complex and tough to interpret. For such cases, the need for enhancement in the ER model was observed, and thus, the EER model was designed.

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Discuss the differences between a context diagram and diagram 0.

Which symbol is not used in a context diagram?

provide reference

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For a business of your choice, use a graphics program to develop a data-flow diagram of one of its main processes and an entity-relationship diagram showing the data within the scope of the system.
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