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Safety and security of information systems
1Lloyd's Register, Croydon, UK.
Studies in Health Technology and Informatics
|December 9, 1995
Summary
This study explores safety and security attributes, comparing them to reliability and availability within dependability. It argues for analyzing systems holistically through dependability rather than in isolation.
Area of Science:
- Systems Engineering
- Risk Management
- Computer Science
Background:
- Safety and security are critical system attributes.
- Existing analyses often treat safety and security separately.
- Dependability encompasses broader system trustworthiness.
Purpose of the Study:
- To differentiate and identify similarities between safety and security.
- To position safety and security within the framework of dependability.
- To propose a unified approach to system analysis.
Main Methods:
- Comparative analysis of safety and security attributes.
- Literature review on dependability, reliability, and availability.
- Conceptual framework development.
Main Results:
- Identified unique and overlapping aspects of safety and security.
- Demonstrated how reliability and availability relate to safety and security.
- Highlighted the limitations of isolated safety or security analyses.
Conclusions:
- Safety and security are distinct yet interconnected attributes.
- A dependability-centric approach offers a more comprehensive system analysis.
- Integrating safety and security under dependability enhances overall system trustworthiness.