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Specification and Verification of Transaction Atomicity, Isolation and Temporal Correctness

Fulltext:


Authors:

Simin Cai, Barbara Gallina, Cristina Seceleanu, Dag Nyström

Research groups:

Formal Modelling and Analysis of Embedded Systems
Certifiable Evidences & Justification Engineering

Publication Type:

Report

Abstract

Although transaction atomicity, isolation and timeliness are crucial to the reliability and safety of many database-centric systems, the selected assurance mechanism of one property may prohibit another. To find an appropriate trade off, one needs to be able to specify and reason about the dependencies between these properties, together with the selected concurrency control and abort recovery mechanisms. However, existing techniques do not take all these aspects into account. In this paper, we propose a UML profile, called UTRAN, for specifying atomic concurrent real-time transactions, with explicit support for all three properties and the mechanisms. We also propose a pattern-based modeling framework, called UPPCART, to formalize the transactions and the mechanisms in UPPAAL timed automata. The UTRAN specification can then be transformed into UPPCART using our proposed reusable patterns, which allows flexible modeling of various concurrency control and abort recovery mechanisms. The traded off properties are then formalized using our proposed specification patterns, and verified by the UPPAAL model checker.

Bibtex

@techreport{Cai5154,
author = {Simin Cai and Barbara Gallina and Cristina Seceleanu and Dag Nystr{\"o}m},
title = {Specification and Verification of Transaction Atomicity, Isolation and Temporal Correctness},
month = {June},
year = {2018},
url = {http://www.es.mdu.se/publications/5154-}
}