Medical software is critical since can cause injuries or, in some cases, the dead of patients. The projects aims to analyse different factors to guarantee the good quality of software.
Partners
University of Bergamo: Angelo Gargantini, Andrea Bombarda, Silvia Bonfanti, Marco Radavelli
University of Texas at Arlington: Yu Lei, Feng Duan
Publications
2023
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RATE: A model-based testing approach that combines model refinement and test execution
Andrea Bombarda, Silvia Bonfanti, Angelo Michele Gargantini, and 2 more authors
SOFTWARE TESTING VERIFICATION & RELIABILITY, 2023
In this paper, we present an approach to conformance testing based on abstract state machines (ASMs) that combines model refinement and test execution (RATE) and its application to three case studies. The RATE approach consists in generating test sequences from ASMs and checking the conformance between code and models in multiple iterations. The process follows these steps: (1) model the system as an abstract state machine; (2) validate and verify the model; (3) generate test sequences automatically from the ASM model; (4) execute the tests over the implementation and compute the code coverage; (5) if the coverage is below the desired threshold, then refine the abstract state machine model to add the uncovered functionalities and return to step 2. We have applied the proposed approach in three case studies: a traffic light control system (TLCS), the IEEE 11073-20601 personal health device (PHD) protocol, and the mechanical ventilator Milano (MVM). By applying RATE, at each refinement level, we have increased code coverage and identified some faults or conformance errors for all the case studies. The fault detection capability of RATE has also been confirmed by mutation analysis, in which we have highlighted that, many mutants can be killed even by the most abstract models.
2019
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Combining Model Refinement and Test Generation for Conformance Testing of the IEEE PHD Protocol Using Abstract State Machines
Andrea Bombarda, Silvia Bonfanti, Angelo Michele Gargantini, and 3 more authors
2019