In a comprehensive presentation, Philipp Stadler, a Senior Software Engineer at Dynatrace, elucidated the intricate functionalities of metrics and metric expressions within the Dynatrace platform. He emphasized the abundance of metrics available through the platform, which can be utilized for dashboard visualization, Service Level Objectives (SLOs), anomaly detection, and root cause analysis. Stadler explained how metrics are composed of a metric key, dimension, value, and timestamp, using a room temperature example to illustrate this. He introduced the concept of metric selectors, which allow users to query specific metrics, dimensions, and aggregations, and highlighted the advanced capabilities of metric expressions to derive new results from existing metrics, such as calculating inactive users or converting currencies. The presentation was enhanced by a live demo showing practical applications of metric expressions, such as converting temperature units or calculating transaction rates. Stadler encouraged viewers to explore the Data Explorer and the Dynatrace Metrics API v2 for hands-on experience and automation, promoting community engagement and the sharing of insights to leverage Dynatrace effectively.