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Benedict Matovu
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Decks in this class (12)
Lecture 1 - Overview
• Critical systems have to be safe, available, reliable, secure and dependable • We have dierent classes of critical systems • Critical systems are socio-technical systems very much inuenced by the human factor in the development of such systems • Given the requirements of critical systems, critical systems engineering is more complex, and must accommodate for such requirements accordingly
15
cards
Lecture 1 Dependability and Security
• Economic and human activities are increasingly dependent on softwareintensive systems. These can be thought of as critical systems. • For critical systems, the costs of failure are likely to signicantly exceed the costs of system development and operation. • Consequently, the dependability and security of the system are the most important development considerations. • Critical systems are often subject to external regulation.
28
cards
Social-Technical Systems
• Socio-technical systems include computer hardware, software and people
and are designed to meet some business goal.
• Human and organisational factors, such as the organisational structure, have
a signicant effect on the operation of socio-technical systems.
• Failure and success are not always absolute - they are always a judgement
made from outside the system
21
cards
Requirements Engineering
What are system requirements,
Example pf requirements,
What is requirements engineering
13
cards
Dependability and Security Specification
Name the three key types of requi...,
What is meant by risk driven spec...,
Name three different types of pha...
19
cards
Reliability Specification
What is meant by reliability spec...,
Name each part of the specificati...,
Recap name the types of system fa...
10
cards
Security Specification
What is meant by security specifi...,
What is meant by security policy,
Name and describe each part of th...
16
cards
Architectural styles for Fault Tolerance
What is meant by system fault tol...,
What is meant by dependable syste...,
What is meant by a protection system
12
cards
Security Specification & Assessment
What is meant by security specifi...,
Security notions recap,
Name and describe the types of se...
12
cards
Resilience
What is meant by resilience defined,
Notes on the ideas behind resilience,
How are faults managed in relatio...
16
cards
Validation, Verification and Formal Methods
Validation of critical systems recap,
How much does validation cost usu...,
What is meant by static analysis ...
20
cards
Case Studies
What was the kegworth airdisaster...,
What was the boeing 737max blowou...,
What was the st helena airport ca...
12
cards
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Critical systems Engineering
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