Tailored Model-Based Assurance and Certification

Method improvement to justify system dependability in compliance with standards
To justify system dependability in compliance with standards by exploiting model-based techniques (e.g., structured specifications that conform to a metamodel), considering specific needs in healthcare, from product-based standards, and for cross-standard compliance analysis.

Model-based assurance and certification aims to facilitate the underlying activities by means of models, which can facilitate the understanding of safety standards, the determination of the evidence to collect, and compliance assessment, among other tasks. This method has been improved to tailor it to further, specific assurance & certification needs.

Tailoring it to the healthcare domain. The tailoring process implies the specification of models for representation of healthcare devices and of the activities related to the development of these devices. Consequently, it would be possible to define specific device and process models by using the conceptual constructs defined, which can be automatically analysed to obtain compliance levels to reference quality models or certification standards.

Application to product-based standards. The extension of Model-based assurance and certification to specific product-based standards involves the translation of the standards involved to appropriate model-based representations that will be used as input artifacts for the V&V process. Reusable safety certification models can be obtained according to the different application domains.

Provision of further support to cross-standard compliance analysis. A relevant element to support the V&V processes related to different standards or application domains is the analysis of equivalencies that exist among different certification models. By providing identification facilities for these equivalences, it would be possible to reuse already performed certifications to determine the degree of compliance in relation to new standards to be adopted. As a result, the effort of certifying or re-certifying a system is reduced.

Some improvements have already been referred to in a publication [TMAC1].

TMAC.jpg

  • Already part of an Eclipse open-source project
  • Integrated with other methodologies and tools, and with integration extension features
  • New tailoring possibilities
  • Limited support for workflow configuration
  • Tool support usability can be improved

[TMAC1] de la Vara, J.L., García, A., Valero, J., Ayora, C.: Model-Based Assurance Evidence Management for Safety-Critical Systems. Software and Systems Modeling (accepted paper), 2022

Method Dimensions
In-the-lab environment
Analytical - Semi-Formal
Hardware, Model, Software
Requirement Analysis, Concept, Integration testing, Acceptance testing, Implementation, Unit testing, Detail Design, Risk analysis, Other, System Design, Architecture Design, Operation, System testing
Thinking, Acting, Other, Sensing
Non-Functional - Safety, Functional, Non-Functional - Privacy, Non-Functional - Other, Non-Functional - Security
V&V process criteria, SCP criteria
Relations
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