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Testing the robustness of controllers for self-adaptive systems

Cámara, Javier, de Lemos, Rogerio, Laranjeiro, Nuno, Ventura, Rafael, Vieira, Marco (2014) Testing the robustness of controllers for self-adaptive systems. Journal of the Brazilian Computer Society, 20 (1). p. 1. ISSN 1678-4804. (doi:10.1186/1678-4804-20-1)

Abstract

Self-Adaptive systems are software-intensive systems endowed with the ability to respond to a variety of changes that may occur in their environment, goals, or the system itself, by adapting their structure and behavior at run-time in an autonomous way. Controllers are complex components incorporated in self-adaptive systems, which are crucial to their function since they are in charge of adapting the target system by executing actions through effectors, based on information monitored by probes. However, although controllers are becoming critical in many application domains, so far very little has been done to assess their robustness. In this paper, we propose an approach for evaluating the robustness of controllers for self-adaptive software systems, aiming to identify faults in their design. Our proposal considers the stateful nature of the controller, and identifies a set of robustness tests, which includes the provision of mutated inputs to the interfaces between the controller and the target system (i.e., probes). The feasibility of the approach is evaluated on Rainbow, a framework for architecture-based self-adaptation, and in the context of the Znn.com case study.

Item Type: Article
DOI/Identification number: 10.1186/1678-4804-20-1
Subjects: Q Science > QA Mathematics (inc Computing science) > QA 76 Software, computer programming,
Divisions: Faculties > Sciences > School of Computing
Depositing User: Rogerio de Lemos
Date Deposited: 17 Sep 2014 10:40 UTC
Last Modified: 29 May 2019 13:05 UTC
Resource URI: https://kar.kent.ac.uk/id/eprint/42982 (The current URI for this page, for reference purposes)
de Lemos, Rogerio: https://orcid.org/0000-0002-0281-6308
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