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A Programming Language for Sound Self-Adaptive Systems

Research output: Contribution to conference - Without ISBN/ISSN Conference paperpeer-review

Publication date25/06/2021
<mark>Original language</mark>English
EventInternational Conference on Autonomic Computing and Self-Organizing Systems -
Duration: 27/09/2021 → …


ConferenceInternational Conference on Autonomic Computing and Self-Organizing Systems
Abbreviated titleACSOS
Period27/09/21 → …


The ability for systems to adapt at runtime by hot-swapping their logic, seamlessly and without any apparent interruption, allows a program to adjust its behavior to its context. Research in adaptive systems support has to date focused on the basic mechanics of hot-swapping code at runtime, with the soundness of a system after each hot-swap left to the developer to assure on a case-by-case basis. Providing this assurance in existing programming languages is sufficiently difficult that self-adaptive systems using hot-swapping remain largely untrusted for production use. In this context we study two research questions: (i) what is the general soundness principle for self-adaptive systems; and (ii) how can we embed this soundness principle in a general-purpose programming language? We answer these questions partly by theoretical analysis, and partly through developing a novel general-purpose programming language which embeds our soundness principle -- allowing any module to be hot-swapped with the soundness of the wider system guaranteed.