Observability architecture is increasingly crucial for IT teams to ensure the smooth operation, reliability, and resilience of complex software systems. By providing a systematic framework, observability architecture offers insights into the behavior, performance, and health of IT systems, enabling teams to identify potential issues and optimize performance. The architecture encompasses various technical and strategic elements, such as data collection, centralized storage, real-time analysis, and DevOps integration, to create a holistic view of system interactions. There are two primary types of observability architecture: microservice-based systems, which focus on distributed tracing, metrics collection, and centralized logging, and event-driven architecture, which emphasizes event tracing and stream processing. The advantages of implementing observability architecture include rapid issue detection, efficient troubleshooting, enhanced user experience, proactive optimization, and regulatory compliance, ultimately supporting continuous improvement and operational excellence in dynamic IT environments.