Lecture Formal methods in software engineering - Lecture 18: Abstract model specification - TRƯỜNG CÁN BỘ QUẢN LÝ GIÁO DỤC THÀNH PHỐ HỒ CHÍ MINH
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Formal Methods in SE
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Notation
• Is used to test the results
• Independent of program code
• Mathematical Data model
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Features( Znotation)
• Decompose specification into small pieces
(Schemas)
• Schemas are used to describe both static and
dynamic aspects of a system
• Data Refinement
• Direct Refinement
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Schema
Static Aspect
<sub>The state can occupy.</sub>
<sub>The invariant relationships that are </sub>
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Schema(cont.)
Dynamic Aspect
<sub>The operations that are possible</sub>
<sub>The relationship between their inputs and </sub>
outputs.
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Notation Example
Some variables are
declared.
Relationship between the values of the variables
Name
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