Data Modeling Challenges

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22 Questions

Database management involves the proper generation, storage, and retrieval of ______.

data

A ______ is a shared, integrated computer structure that stores a collection of data.

database

File systems store data as a collection of ______.

files

[Blank] is the result of processing raw data to reveal its meaning.

information

Data-modeling skills are vital in the data design process because good data modeling facilitates communication between the ______, user, and the developer

designer

Most users lack the skill to properly design ______, despite multiple personal productivity tools being available

databases

The ______ is the intermediary between the user and the database.

DBMS

DBMS enables data to be shared among multiple ______ or applications.

users

Database Systems Database system consists of logically related data stored in a single logical ______ repository

data

Data ______ occurs when different versions of the same data appear in different places.

inconsistency

Data designs created by end users are rarely ______ and never with appropriate standardized data –modeling technique

documented

Improved data ______ is one of the advantages of a DBMS.

security

Using databases changed the way end users store, access and manage data using ______

DBMS

A ______ database supports multiple users at the same time.

multiuser

People naturally have an integrated view of data and forcing this into single 2-dimensional structure is poor ______ design

data

A ______ database stores data used for tactical or strategic decisions.

data warehouse

Changing existing ______ is difficult in file system environments.

structure

[Blank] dependence occurs when data access changes when data storage characteristics change.

Data

In a file system, ______ redundancy occurs when the same data is stored unnecessarily in different places.

Data

Uncontrolled ______ redundancy can lead to poor data security and data inconsistency.

Data

Data ______ occurs when not all changes in redundant data are made correctly.

anomalies

[Blank] independence means data storage characteristics do not affect data access.

Data

Test your knowledge on common issues in data modeling, including insertion and deletion anomalies, poor design, and the importance of data-modeling skills. Learn how to overcome these challenges and create effective database designs.

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