Universitat Politècnica de València, 46022 Valencia, Spain.
Sensors (Basel). 2022 Dec 5;22(23):9501. doi: 10.3390/s22239501.
Determining the temporal behavior of an IoT platform is of utmost importance as IoT systems are time-sensitive. IoT platforms play a central role in the operation of an IoT system, impacting the overall performance. As a result, initiating an IoT project without the exhaustive knowledge of such a core software piece may lead to a failed project if the finished systems do not meet the needed temporal response and scalability levels. Despite this fact, existing works on IoT software systems focus on the design and implementation of a particular system, providing a final evaluation as the validation. This is a risky approach as an incorrect decision on the core IoT platform may involve great monetary loss if the final evaluation proves that the system does not meet the expected validation criteria. To overcome this, we provide an evaluation process to determine the temporal behavior of IoT platforms to support early design decisions with respect to the appropriateness of the particular platform in its application as an IoT project. The process defines the steps towards the early evaluation of IoT platforms, ranging from the identification of the potential software items and the determination of the validation criteria to running the experiments and obtaining results. The process is exemplified on an exhaustive evaluation of a particular mainstream IoT platform for the case of a medical system for patient monitoring. In this time-sensitive scenario, results report the temporal behavior of the platform regarding the validation parameters expressed at the initial steps.
确定物联网平台的时间行为至关重要，因为物联网系统是时间敏感的。物联网平台在物联网系统的运行中起着核心作用，影响着整体性能。因此，如果在没有充分了解核心软件的情况下启动物联网项目，那么如果最终系统无法满足所需的时间响应和可扩展性水平，项目可能会失败。尽管如此，现有的物联网软件系统工作侧重于特定系统的设计和实现，并提供最终评估作为验证。这是一种有风险的方法，因为如果最终评估证明系统不符合预期的验证标准，那么在核心物联网平台上做出错误的决策可能会导致重大的经济损失。为了克服这个问题，我们提供了一个物联网平台的时间行为评估过程，以支持早期设计决策，即特定平台在其作为物联网项目应用中的适当性。该过程定义了早期评估物联网平台的步骤，包括确定潜在软件项目和验证标准，到运行实验和获得结果。该过程以一个全面的评估为例，针对患者监测的医疗系统的情况，评估了一个特定的主流物联网平台。在这种时间敏感的情况下，结果报告了平台在初始步骤中表示的验证参数的时间行为。
