7.7: Summary

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Summary

Data are the raw bits and pieces of information with no context.

Information is data with context and has usefulness.

Knowledge is information (Data in context) that is analyzed and aggregated to make decisions.

A database is a digital collection of related information to transform data into information in order to generate knowledge that can be used for decision making.

There are three main data types: structured, unstructured, and semi-structured.

Before database systems, computers relied on a much less elegant and costly approach to data management called the file-based system. A file-based system is a collection of application programs that perform services for the users wishing to access information.

A database management system (DBMS) is a collection of programs that enables users to create and maintain databases and control all access to them.

There are four main distribution systems for database systems: Centralized systems, Distributed database systems, Homogeneous distributed database systems, and Heterogeneous distributed database systems.

A data warehouse is a centralized view of all data being collected across the enterprise and provides a means for determining data that is inconsistent.

Data mining is the process of analyzing data to find previously unknown trends, patterns, and associations in order to make decisions

It is the confidentiality, integrity, and availability (CIA) of the data in a database that needs to be protected.

The causes of Database Breaches are Threats and Vulnerabilities.

Protect yourself better by Keep passwords to yourself, Use different passwords for different accounts, Use strong passwords, check your credit reports annually, Control physical access to your devices, Remember to log out or lock your computer when you are finished using it, and remember to lock your computer with a password when you are finished using it.