Description: The trigger expression is a logical statement that determines when a trigger should be activated. In the context of monitoring systems, these expressions are fundamental for the efficient management of alerts and events. They consist of conditions that evaluate the status of monitored items, allowing administrators to define specific criteria under which notifications or automatic actions should be generated. These expressions can include logical and mathematical operators, as well as built-in functions that allow for complex comparisons and calculations. The flexibility of trigger expressions enables users to customize their monitoring according to the specific needs of their infrastructure, ensuring that issues are detected in real-time and appropriate measures are taken. Furthermore, their proper implementation is crucial to avoid false or unnecessary alerts, contributing to more effective resource management and reducing the workload of IT staff. In summary, trigger expressions are a powerful tool within monitoring systems that allows users to establish proactive monitoring tailored to their operational requirements.