Introduction -Compatibility Mode
Introduction
Objectives
Objectives
Upon completion of this chapter, you should be able to:
Define security
Describe
Describe an information system and its components
Define database management system functionalities
Outline the concept of information security
Identify the major components of information security architecture Define database security
Describe security methods
Security
Security Definition
Security is defined as the level and degree of being free from danger and threats. Security applies in many areas:
- National security
(the army protect us against enemies)
- Investment security (shares give us right to receive
dividends)
- Institution’s security (guard protect the properties and people) - Financial security (insurance protect us against loss of wages due to death or illness)
Security
Security Definition
Security definitions from IT perspective:
“the ideal state where all information can be communicated across the internet secure from unauthorized persons being able to read it and/or manipulate it”
[Essinger
[Essinger,2001,p.43]
Security
Security Definition
Security definitions from IT perspective:
“deals with the techniques employed to maintain security within a computer system”
[Gollman, 1999, p.3]
“is also the process of preventing and detecting unauthorized use of one’s computer”
[Home Network Security, 2003]
Information
Information System
Success of a business usually attributed to the wise decisions of the
CEO
CEO.
Wise decision can only be made when the information is accurate and timely.
Accurate
Accurate and timely information depends on the integrity of the source data and the reliable processing of that data.
Data is processed by a collection of components working together to generate accurate information. (known as an information system)
Information
Information System
Category
Characteristics
Example
TPS
- Operational task
- Structured problems
Objectives
Objectives
Upon completion of this chapter, you should be able to:
Define security
Describe
Describe an information system and its components
Define database management system functionalities
Outline the concept of information security
Identify the major components of information security architecture Define database security
Describe security methods
Security
Security Definition
Security is defined as the level and degree of being free from danger and threats. Security applies in many areas:
- National security
(the army protect us against enemies)
- Investment security (shares give us right to receive
dividends)
- Institution’s security (guard protect the properties and people) - Financial security (insurance protect us against loss of wages due to death or illness)
Security
Security Definition
Security definitions from IT perspective:
“the ideal state where all information can be communicated across the internet secure from unauthorized persons being able to read it and/or manipulate it”
[Essinger
[Essinger,2001,p.43]
Security
Security Definition
Security definitions from IT perspective:
“deals with the techniques employed to maintain security within a computer system”
[Gollman, 1999, p.3]
“is also the process of preventing and detecting unauthorized use of one’s computer”
[Home Network Security, 2003]
Information
Information System
Success of a business usually attributed to the wise decisions of the
CEO
CEO.
Wise decision can only be made when the information is accurate and timely.
Accurate
Accurate and timely information depends on the integrity of the source data and the reliable processing of that data.
Data is processed by a collection of components working together to generate accurate information. (known as an information system)
Information
Information System
Category
Characteristics
Example
TPS
- Operational task
- Structured problems