Lecuture 7 Formal Specification

Lecuture 7 Formal Specification - FormalSpecification...

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CUHK, Spring 2007 Formal Specification Formal Specification Teresa Teresa  Xia Cai  Xia Cai
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CUHK, Spring 2007 Software Engineering / 4B - 2 Objectives Objectives Formal specification in the software process Sub-system interface specification Behavioural specification
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CUHK, Spring 2007 Software Engineering / 4B - 3 1. Formal methods 1. Formal methods Formal specification is part of a more general  collection of techniques that are known as  ‘formal methods’. These are all based on  mathematical  representation and analysis  of software. Formal methods include Formal specification; Specification analysis and proof; Transformational development; Program verification.
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CUHK, Spring 2007 Software Engineering / 4B - 4 Use of formal methods Use of formal methods The principal benefits of formal methods are in  reducing the number of faults in systems. Consequently, their main area of applicability is  in  critical systems engineering In this area, the use of formal methods is most  likely to be cost-effective because high system  failure costs must be avoided. 
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CUHK, Spring 2007 Software Engineering / 4B - 5 Specification in the software process Specification in the software process Specification and design are inextricably  intermingled. Architectural design is essential to structure a  specification and the specification process. Formal specifications are expressed in a  mathematical notation  with precisely defined  vocabulary, syntax and semantics.
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CUHK, Spring 2007 Software Engineering / 4B - 6 Specification in the software process Specification in the software process
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CUHK, Spring 2007
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