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Validating and verifying the requirements and design of a haemodialysis machine using the rodin toolset

Validating and verifying the requirements and design of a haemodialysis machine using the rodin toolset
Validating and verifying the requirements and design of a haemodialysis machine using the rodin toolset
We present a formal specification and analysis of a haemodialysis machine (HD machine) in Event-B using the Rodin Toolset. The medical device domain is a particularly complex multidisciplinary field involving disparate branches of engineering, biological and medical fields as well as a critical patient-machine interface. Requirements include safety properties, process steps, human-machine interfaces, timing constraints, dynamic control algorithms, and design features. Our aim is to demonstrate that the Event-B based modelling, verification and validation tools deal with the variety of requirements involved in a typical medical device. We utilise ProR for structuring and tracking requirements. We model the HD machine using iUML-B state-machines and class diagrams, and build a corresponding BMotion Studio visualisation. For verification, we use both theorem proving and model checking techniques. We validate the design of the system using (i) diagrams to aid the modelling of the sequential properties of the requirements, and (ii) ProB-based animation and visualisation tools to explore the system's behaviour. Some of the safety properties involve dynamic behaviour which is difficult to verify in Event-B. For these properties we use (iii) co-simulation tools to validate against a continuous model of the physical behaviour. We conclude that the Event-B based modelling tools are particularly rich in verification and validation techniques and with the help of supporting tools for requirements tracking, are able to address the different kinds of requirements in a medical device.
Haemodialysis Machine, Event-B, ProR, ProB, iUML-B, BMotion Studio, Co-Simulation
Hoang, Thai Son
dcc0431d-2847-4e1d-9a85-54e4d6bab43f
Snook, Colin
b2055316-9f7a-4b31-8aa1-be0710046af2
Salehi Fathabadi, Asieh
b799ee35-4032-4e7c-b4b2-34109af8aa75
Butler, Michael
54b9c2c7-2574-438e-9a36-6842a3d53ed0
Ladenberger, Lukas
9d4b0b98-f3a7-4b66-95cc-45014af503f9
Hoang, Thai Son
dcc0431d-2847-4e1d-9a85-54e4d6bab43f
Snook, Colin
b2055316-9f7a-4b31-8aa1-be0710046af2
Salehi Fathabadi, Asieh
b799ee35-4032-4e7c-b4b2-34109af8aa75
Butler, Michael
54b9c2c7-2574-438e-9a36-6842a3d53ed0
Ladenberger, Lukas
9d4b0b98-f3a7-4b66-95cc-45014af503f9

Hoang, Thai Son, Snook, Colin, Salehi Fathabadi, Asieh, Butler, Michael and Ladenberger, Lukas (2017) Validating and verifying the requirements and design of a haemodialysis machine using the rodin toolset. Science of Computer Programming. (doi:10.1016/j.scico.2017.11.002).

Record type: Article

Abstract

We present a formal specification and analysis of a haemodialysis machine (HD machine) in Event-B using the Rodin Toolset. The medical device domain is a particularly complex multidisciplinary field involving disparate branches of engineering, biological and medical fields as well as a critical patient-machine interface. Requirements include safety properties, process steps, human-machine interfaces, timing constraints, dynamic control algorithms, and design features. Our aim is to demonstrate that the Event-B based modelling, verification and validation tools deal with the variety of requirements involved in a typical medical device. We utilise ProR for structuring and tracking requirements. We model the HD machine using iUML-B state-machines and class diagrams, and build a corresponding BMotion Studio visualisation. For verification, we use both theorem proving and model checking techniques. We validate the design of the system using (i) diagrams to aid the modelling of the sequential properties of the requirements, and (ii) ProB-based animation and visualisation tools to explore the system's behaviour. Some of the safety properties involve dynamic behaviour which is difficult to verify in Event-B. For these properties we use (iii) co-simulation tools to validate against a continuous model of the physical behaviour. We conclude that the Event-B based modelling tools are particularly rich in verification and validation techniques and with the help of supporting tools for requirements tracking, are able to address the different kinds of requirements in a medical device.

Text HDMachine - Accepted Manuscript
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More information

Accepted/In Press date: 6 November 2017
e-pub ahead of print date: 17 November 2017
Keywords: Haemodialysis Machine, Event-B, ProR, ProB, iUML-B, BMotion Studio, Co-Simulation

Identifiers

Local EPrints ID: 415687
URI: https://eprints.soton.ac.uk/id/eprint/415687
PURE UUID: 36a1c119-719f-44a3-adcc-1d54f0f079b5
ORCID for Thai Son Hoang: ORCID iD orcid.org/0000-0003-4095-0732
ORCID for Colin Snook: ORCID iD orcid.org/0000-0002-0210-0983
ORCID for Michael Butler: ORCID iD orcid.org/0000-0003-4642-5373

Catalogue record

Date deposited: 20 Nov 2017 17:30
Last modified: 06 Jun 2018 13:04

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