The UCSF IT Enterprise Logging Service (ELS) is a centralized service offering that helps system, application, and service owners meet operational, security, audit, and compliance logging requirements. 

ELS provides guidance, onboarding, and support for enterprise logging capabilities, including log collection, retention, traceability, and access management. By partnering with service owners, ELS helps ensure logs are collected, retained, and made available in accordance with organizational standards and operational needs. 

Datadog is a cloud-based monitoring and security platform designed to provide real-time insights into the performance, health, and security of IT environments. It offers comprehensive observability by aggregating data across servers, databases, applications, containers, and cloud services into a unified platform.