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arXiv · 1906.00766

An Operational Guide to Monitorability

Luca Aceto·Antonis Achilleos·Adrian Francalanza·Anna Ingólfsdóttir·Karoliina Lehtinen
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Abstract

Monitorability delineates what properties can be verified at runtime. Although many monitorability definitions exist, few are defined explicitly in terms of the guarantees provided by monitors, i.e., the computational entities carrying out the verification. We view monitorability as a spectrum: the fewer monitor guarantees that are required, the more properties become monitorable. We present a monitorability hierarchy and provide operational and syntactic characterisations for its levels. Existing monitorability definitions are mapped into our hierarchy, providing a unified framework that makes the operational assumptions and guarantees of each definition explicit. This provides a rigorous foundation that can inform design choices and correctness claims for runtime verification tools.

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Luca Aceto, Antonis Achilleos, Adrian Francalanza, Anna Ingólfsdóttir, Karoliina Lehtinen. 2019-06-03. An Operational Guide to Monitorability. https://arxiv.org/abs/1906.00766

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