TAILIEUCHUNG - Lecture Software engineering (9/e): Chapter 13 - Sommerville

Chapter 13 – Dependability engineering. The objective of this chapter is to discuss processes and techniques for developing highly dependable systems. When you have read this chapter you will: understand how system dependability can be achieved by using redundant and diverse components; know how dependable software processes contribute to the development of dependable software; understand how different architectural styles may be used to implement software redundancy and diversity;. | Chapter 13 – Dependability engineering Lecture 1 1 Chapter 13 Dependability Engineering Topics covered Redundancy and diversity Fundamental approaches to achieve fault tolerance. Dependable processes How the use of dependable processes leads to dependable systems Dependable systems architectures Architectural patterns for software fault tolerance Dependable programming Guidelines for programming to avoid errors. Chapter 13 Dependability Engineering 2 Software dependability In general, software customers expect all software to be dependable. However, for non-critical applications, they may be willing to accept some system failures. Some applications (critical systems) have very high dependability requirements and special software engineering techniques may be used to achieve this. Medical systems Telecommunications and power systems Aerospace systems 3 Chapter 13 Dependability Engineering Dependability achievement Fault avoidance The system is developed in such a way that human error .

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