Paper Info
Title
Analysis On Strategies Of Superposition Refinement Of Event-B Specifications
Abstract
The superposition refinement with the Event-B modeling method is useful because it supports construction of models in multiple abstraction levels, and thus mitigates the burden of constructing rigorous models. With such a refinement mechanism, developers can choose which subset of a target system's elements is specified in each abstraction level (refinement strategy). Although differences of refinement strategies for a model affect the complexity of modeling and verification, the effect has not been studied. We propose our automatic refinement refactoring method, which constructs abstract versions of a given Event-B model according to a refinement strategy different from the original one. We applied the refactoring method to construct various refactored versions of large Event-B models and compared them. As a result, we found that the granularity and frequently used variables are important factors for reducing the complexity. We consider the findings important to help Event-B modelers to design and change refinement strategies.
Year
DOI
Venue
2018
10.1007/978-3-030-02450-5_21
FORMAL METHODS AND SOFTWARE ENGINEERING, ICFEM 2018
Keywords
Field
DocType
Event-B, Refinement, Formal specifications, Design exploration
Superposition principle,Abstraction,Computer science,Formal specification,Theoretical computer science,Granularity,Abstraction layer,Code refactoring,Design exploration
Conference
Volume
ISSN
Citations 
11232
0302-9743
0
PageRank 
References 
Authors
0.34
10
2
Name
Order
Citations
PageRank
Tsutomu Kobayashi172.92
Fuyuki Ishikawa250151.34