Nowadays knowing performance and health condition of IT applications at the first place becomes increasingly crucial for any IT domain. Many organizations have been turning more digitalization capabilities into competitive advantage and revenue growth, therefore disruption of underlying IT systems or products can incur dramatical impacts to enterprise's reputation, finance and operation, in addition to embracing the evolving technologies and techniques to improve IT service quality, monitoring play an integral role to proactively prevent incident or improve the recovery time in an emergency.
On the technology side, effectively monitoring 100% of IT systems and infrastructure can be quite a challenge, in a typical modern IT corporation, a service-oriented, cloud-based and event-driven architecture can incorporate thousands of interoperated, autonomous micro-services, along with thousands of changes or deployments happen every day, which makes the traditional lowly integrated, labor-intensive monitoring impractical.