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Questions and Answers
What is the primary objective of Entity-Relationship (ER) modeling in database design?
What is the primary objective of Entity-Relationship (ER) modeling in database design?
- To design the user interface and application programs
- To identify and resolve problems with ER models called connection traps
- To represent the conceptual, logical, and physical design of the database (correct)
- To plan the stages of the System Development Life Cycle (SDLC)
Which stage of the System Development Life Cycle (SDLC) involves building a working model of the database system?
Which stage of the System Development Life Cycle (SDLC) involves building a working model of the database system?
- Prototyping (correct)
- System Definition
- Data Conversion
- DB Planning
What is the main purpose of selecting a suitable DBMS for the database system?
What is the main purpose of selecting a suitable DBMS for the database system?
- To specify the stages of the System Development Life Cycle (SDLC)
- To efficiently realize the scope and boundaries of the DB system (correct)
- To create the physical DB definitions and application programs
- To plan the major user views and application areas
What does the stage of Requirement Collection involve in the context of database design?
What does the stage of Requirement Collection involve in the context of database design?
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What is a key aspect associated with ER modeling using Unified Modeling Language (UML)?
What is a key aspect associated with ER modeling using Unified Modeling Language (UML)?
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Study Notes
Entity-Relationship (ER) Modeling
- The primary objective of ER modeling in database design is to visually represent the structure of a database, allowing designers to conceptualize and organize data into entities and relationships.
System Development Life Cycle (SDLC)
- The stage of the SDLC that involves building a working model of the database system is prototyping.
Database Management System (DBMS) Selection
- The main purpose of selecting a suitable DBMS for the database system is to choose a DBMS that meets the functional and performance requirements of the database.
Requirement Collection
- The stage of Requirement Collection in database design involves gathering and documenting the functional and non-functional requirements of the database system from stakeholders.
ER Modeling with UML
- A key aspect associated with ER modeling using Unified Modeling Language (UML) is the use of class diagrams to represent entities and their relationships.
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