42 Platform as a Service (PaaS), Integration Platform as a Service (iPaaS), IoT Cloud Platforms, Software as a Service (SaaS), Virtual Reality, and Augmented Reality featuring online non-downloadable computer software platforms, checklists, surveys, questionnaires, and other online tools for collecting, receiving, measuring, recording, processing, organizing, manipulating, transmitting, receiving, displaying, and reviewing data and information relating to physical parameters, physiological data, bio-signals, biofeedback, body behavior, chemical indicators and/or environmental measures in connection with the use of personal protective equipment (PPE); Platform as a Service (PaaS), Integration Platform as a Service (iPaaS), IoT Cloud Platforms, Software as a Service (SaaS), Virtual Reality, and Augmented Reality featuring online non-downloadable computer software platforms, checklists, surveys, questionnaires, and other online tools for monitoring wearable computer hardware systems, robotic exoskeleton apparatus, and other wearable electronic or IoT devices; Platform as a Service (PaaS), Integration Platform as a Service (iPaaS), IoT Cloud Platforms Software as a Service (SaaS), Virtual Reality, and Augmented Reality featuring online non-downloadable computer software platforms, checklists, surveys, questionnaires, and other online software tools for collecting and managing data and information from wearable systems, comprised of robotic exoskeleton apparatus and other computer hardware, and other wearable electronic or IoT telecommunications devices; Platform as a Service (PaaS), Integration Platform as a Service (iPaaS), IoT Cloud Platforms Software as a Service (SaaS), Virtual Reality, and Augmented Reality featuring online non-downloadable computer software platforms, checklists, surveys, questionnaires and other online tools for monitoring personnel, including, contact tracing, proximity and physical distancing, health screening, location approximation, designing digital twins and personal protective equipment monitoring