Internet-of-Things (IoT) ecosystems tend to grow both in scale and complexity, as they consist of a variety of heterogeneous devices that span over multiple architectural IoT layers (e.g., cloud, edge, sensors). Further, IoT systems increasingly demand the resilient operability of services, as they become part of critical infrastructures. This leads to a broad variety of research works that aim to increase the resilience of these systems. In this article, we create a systematization of knowledge about existing scientific efforts of making IoT systems resilient. In particular, we first discuss the taxonomy and classification of resilience and resilience mechanisms and subsequently survey state-of-the-art resilience mechanisms that have been proposed by research work and are applicable to IoT. As part of the survey, we also discuss questions that focus on the practical aspects of resilience, e.g., which constraints resilience mechanisms impose on developers when designing resilient systems by incorporating a specific mechanism into IoT systems.

中文翻译：

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物联网弹性调查

物联网 (IoT) 生态系统的规模和复杂性都趋于增长，因为它们由跨越多个物联网架构层（例如，云、边缘、传感器）的各种异构设备组成。此外，随着物联网系统成为关键基础设施的一部分，物联网系统越来越需要服务的弹性可操作性。这导致了各种各样的研究工作，旨在提高这些系统的弹性。在本文中，我们创建了一个关于使物联网系统具有弹性的现有科学努力的知识系统化。特别是，我们首先讨论了弹性和弹性机制的分类和分类，随后调查了研究工作提出的适用于物联网的最先进的弹性机制。作为调查的一部分，