Database Environment and Development Process
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Questions and Answers

Which methodology is traditionally used to develop, maintain, and replace information systems?

  • Agile Development Framework
  • Rapid Application Development
  • Waterfall Model
  • Systems Development Life Cycle (correct)

What establishes the range and general contents of organizational databases during database development?

  • Functional Modeling
  • Preliminary Data Analysis
  • Database Schema Design
  • Enterprise Data Modeling (correct)

In which SDLC phase are data attributes defined and business relationships between data entities specified?

  • Analysis (correct)
  • Design
  • Implementation
  • Planning

Which of the following schemas is not part of the three-schema approach?

<p>Hierarchical (B)</p> Signup and view all the answers

Which group does NOT focus on determining the requirements for the database component of an information system?

<p>End Users (D)</p> Signup and view all the answers

A database is an organized collection of what type of data?

<p>Logically related data (B)</p> Signup and view all the answers

What term is used for older systems that often contain data of poor quality?

<p>Legacy systems (A)</p> Signup and view all the answers

What causes program-data dependence?

<p>Hard-coded data descriptions in application code (A)</p> Signup and view all the answers

In file processing systems, what is the usual situation regarding data?

<p>Unplanned duplicate data files are common (A)</p> Signup and view all the answers

What are relational databases capable of establishing between entities?

<p>Common fields in a file (A)</p> Signup and view all the answers

Which term describes data that provides information about other data?

<p>Metadata (D)</p> Signup and view all the answers

Which of the following is NOT a primary purpose of a database management system (DBMS)?

<p>Providing an integrated development environment (D)</p> Signup and view all the answers

What term is assigned to a person, place, object, event, or concept that organizations want to keep data about?

<p>Entity (B)</p> Signup and view all the answers

What best describes a user view in a database context?

<p>A logical description of some portion of the database. (B)</p> Signup and view all the answers

Who is primarily responsible for setting database standards within an organization?

<p>Database Administration (A)</p> Signup and view all the answers

Which of the following tools can be utilized by non-programmers for database access?

<p>Structured query language (A)</p> Signup and view all the answers

Which option represents a disadvantage associated with database systems?

<p>Redundant data (C)</p> Signup and view all the answers

What is the primary cause of database failures in organizations?

<p>Failure to implement a strong database administration function (C)</p> Signup and view all the answers

Which term refers to a rule that must be followed by database users?

<p>Constraint (B)</p> Signup and view all the answers

In a file processing environment, where are data descriptions and logic for accessing data typically found?

<p>Application programs (B)</p> Signup and view all the answers

Which of the following is NOT an objective that has influenced the evolution of database technology?

<p>Require programmers to handle all file operations (A)</p> Signup and view all the answers

Flashcards

Database Management System (DBMS)

Software used to create, maintain, and provide controlled access to databases.

Enterprise Data Modeling

The initial step in database development, defining the scope and content of organizational databases.

Systems Development Life Cycle (SDLC)

The traditional approach to developing and maintaining information systems (including databases).

SDLC Analysis Phase

The SDLC phase where data attributes, categories, and relationships are defined.

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SDLC Design Phase

The SDLC phase for organizing database storage on computer disks.

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Legacy System

An older system containing data of poor quality, often with outdated technology.

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Program-Data Dependence

A situation where the way data is described is linked to specific applications. Changes in application can thus alter the data.

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Duplicate Data Files

Unplanned, repeated copies of data in separate files. This is common in file-processing systems.

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Relation

In a relational database, a table that connects data from multiple entities.

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User View

A portion of the database that is specific to the needs of one user or user group.

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Data Model

A graphical representation of the entities and relationships in a database.

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Metadata

Data that describes other data, including its properties and structure.

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Entity

A person, place, object, event, or concept in a database that has its own data.

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User View (Database)

A simplified representation of a portion of a database that a user sees and interacts with.

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Database Administration (DBA)

The organizational function responsible for managing and maintaining a database.

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Structured Query Language (SQL)

A standard language used to access and manipulate data in a database.

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Database Redundancy

Data duplication in a database system. It can result in inconsistency.

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Database Constraint

A rule enforced by the database system to ensure data integrity.

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File Processing Environment

A legacy systems with data stored in files. The logic for accessing the data is built into the application programs.

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Workgroup Database

A database designed for use by a small group of people collaborating on the same project.

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Database Server

A central device that holds a workgroup database.

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Study Notes

Database Environment and Development Process

  • A database is an organized collection of related data, logically structured.
  • Legacy systems are older systems containing poor quality data.
  • Program-data dependence is caused by file descriptions stored within each database application, data descriptions within programming code, or by data cohabiting with programs.
  • File processing systems often result in unplanned duplicate data files. Data is not always non-redundant.
  • Relational databases establish relationships between entities via common fields in a relation.
  • A user view is a logical description of a portion of the database.
  • Database standards are set by the Database Administration function.
  • ODBC is a tool non-programmers can use to access database information.
  • Redundant data is NOT an advantage of database systems.
  • Database failures are mainly due to issues with database administration (not planning, budget, or hardware).
  • A constraint is a rule that cannot be violated by database users.
  • In file processing environments, descriptions and logic for accessing data reside within application programs.
  • Database technology's objectives include providing greater independence between programs and data, managing complex data types, and enabling decision support applications.
  • A workgroup is a small team collaborating on a project.
  • A workgroup database is stored in a central device (like a server).
  • The need for consensus on data definitions is a cost/risk of organizational conflict in database approaches.
  • The SDLC (Systems Development Life Cycle) is a traditional methodology to develop, maintain, and replace information systems.
  • The SDLC phase where data attributes, categories, and relationships between entities are defined is the analysis phase.
  • The phase where database processing programs are created is implementation.
  • Database organization on storage media occurs during the implementation phase.
  • Database analysts do not focus on determining requirements for database components.
  • The three-schema approach includes internal schemas.
  • The ERD (Entity-Relationship Diagram) is the most common RDMS data model notation.

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Description

Test your knowledge on the fundamentals of database systems and their development processes. This quiz covers topics such as relational databases, data integrity, and the role of database administration. Perfect for students and professionals looking to reinforce their understanding of database environments.

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