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Chapter 7

DAC1

QuestionAnswer
Information Redundancy is the duplication of data, or the storage of the same data in multiple places.
What are rules that help ensure the quality of information? Integrity constraints
What are the data elements associated with an entity? Attributes
Static Information Includes fixed data incapable of change in the event of a user action.
Two terms representing the smallest or basic unit of information. Data element Data field
Backward Integration takes information entered into a given system and sends it automatically to all upstream systems and processes.
What is a primary key of one table that appears as an attribute in another table and acts to provide a logical relationship between the two tables? Foreign key
Logical data structures that detail the relationships among data elements using graphics or pictures are Data models
What allows separate systems to communicate directly with each other, eliminating the need for manual entry into multiple systems? Integration
Who is the person responsible for creating the original website content? Content creator
Metadata Provides details about data.
Three accurate statements reflecting the business advantages of a relational database? Increased information security Reduced information redundancy Increased information integrity
Structured query Language asks users to write lines of code to answer questions against a database.
What complies all of the metadata about the data elements in the data model? Data dictionary
What enforces business rules vital to an organization's success and often require more insight and knowledge than relational integrity constraints? Business-critical integrity constraints
Data driven website interactive website kept constantly updated and relevant to the needs of its customers using a database.
Integrity constraints rules that help ensure the quality of information.
What defines how a company performs certain aspects of its business and typically results in either a yes/no or true /false answer? Business rule
What takes information entered into a given system and sends it automatically to all downstream systems and processes. Forward Integration
Which system allows users to create, read, update, and delete data in a relational database? Relational database management system
What is a measure of the quality of information? Information intergrity
Primary key field (or group of fields) that uniquely a given record in a table.
Four functions that a database management system can perform on data in a database? Delete data Read data Create data Update data
Three terms that represent the data elements associated with an entity? Fields Attributes Columns
Redundancy duplication of data or storage of the same data in multiple places.
Metadata provides details about data.
Data Field Data Element smallest or basic unit of information
Structured Query Language asks users to write lines of code to answer questions against a database.
Three terms that represent the data elements associated with an entity? Attributes Fields Columns
Forward integration
Data Dictionary complies all of the metadata about the data elements in the data model.
Created by: smcdo11
 

 



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