Accessibility of the Node-Red IoT Framework: An Integrative Review

Abstract

Industry 4.0 technologies are on the rise in the international market, especially the Internet of Things, better known as IoT. The demand for software development for IoT technologies is also growing. Considering that human beings have different deficiencies and specific needs, including among professionals who can develop and implement the technology, this work aimed to understand if there is accessibility in the IoT Node-Red® framework. Therefore, an integrative literature review was carried out to evaluate the use of the Node-Red® framework. It was observed how the technologies were applied by the researchers and if there is accessibility and adequacy to the rules of the W3C (World Wide Web Consortium), since the W3C regulates ideal standards for software development, including accessibility. With the analysis it was possible to show that there are simple movements in favor of User Experience (UX) and accessibility in a generic way in different scenarios, from domestic, business, industrial and health use. The search results were demonstrated through data categorization, synthesis matrix and descriptive analysis. The discussion and synthesis of knowledge pointed out the points of contribution of each work and the gaps in the literature on accessibility for an IoT framework. It was detailed what each article contributed to this discussion, and it was argued that even though there were no major limitations pointed out by the reviewed authors for the implementation of IoT and accessibility, they also discussed little or nothing about accessibility and W3C standards in their works.