The articles [links] below demonstrate the need to have a sustainable IoT infrastructure. One tool used to analyze feasibility and sustainability is calculating the ROI. First, read and then summarize the articles. Note: Cite the authors of the papers.
https://igu.instructure.com/files/424037/download?download_frd=1
https://igu.instructure.com/files/424038/download?download_frd=1