COMPUTER APPLICATIONS
DATABASE MANAGEMENT SYSTEMS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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ENTITY-RELATIONSHIP
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ENTITY
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ARCHITECTURAL REPRESENTATION
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DATABASE
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Detailed explanation-1: -1. Which of the following gives a logical structure of the database graphically? Explanation: E-R diagrams are simple and clear-qualities that may well account in large part for the widespread use of the E-R model.
Detailed explanation-2: -An entity relationship diagram (ERD), also known as an entity relationship model, is a graphical representation that depicts relationships among people, objects, places, concepts or events within an information technology (IT) system.
Detailed explanation-3: -Logical data modeling belongs to the entity relationship model, built using an Entity Relationship Diagram (known as ERD), a standard modeling technique used as a communication tool by data modelers worldwide. Within it are the complete set of business requirements but not technical components.
Detailed explanation-4: -An Entity Relationship (ER) Diagram is a type of flowchart that illustrates how “entities” such as people, objects or concepts relate to each other within a system.