SLA Conceptual Model for IoT Applications

TL;DR

This paper proposes a comprehensive SLA conceptual model for IoT applications, integrating QoS requirements across clouds, networks, and devices to ensure end-to-end service delivery.

Contribution

It introduces a novel conceptual model and vocabularies for specifying IoT SLAs, including QoS metrics and configuration parameters, validated through a goal-oriented evaluation.

Findings

High participant satisfaction with the model

Effective capture of main IoT SLA concepts

Model supports end-to-end QoS specification

Abstract

Since SLAs specify the contractual terms that are formally used between consumers and providers, there is a need to aggregate QoS requirements from the perspectives of Clouds, networks, and devices to deliver the promised IoT functionalities. Therefore, the main objective of this chapter is to provide a conceptual model of SLA for the IoT as well as rich vocabularies to describe the QoS and domain-specific configuration parameters of the IoT on an end-to-end basis. We first propose a conceptual model that identifies the main concepts that play a role in specifying end-to-end SLAs. Then, we identify some of the most common QoS metrics and configuration parameters related to each concept. We evaluated the proposed conceptual model using a goal-oriented approach, and the participants in the study reported a high level of satisfaction regarding the proposed conceptual model and its ability to capture main concepts in a general way.