The Data Collection, Analytics, and Events (DCAE) subsystem, in conjunction with other OpenECOMP components, provides FCAPS (fault, configuration, accounting, performance, security) functionality. DCAE gathers performance, usage, and configuration data about the OpenECOMP system. This data can then be fed to various analytic programs, and if anomalies or significant events are detected, the results can trigger appropriate actions, such as publishing to other OpenECOMP components such as Policy, orchestration, or the data lake. DCAE supports closed-loop control and higher-level correlation for business and operations activities. It also provides the infrastructure for collection of autonomous events from the network and other cloud components, making them available to subscribing applications, including business support system (BSS) and operational support system (OSS) applications.
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Usage and event management BSSs can be created as applications on top of the DCAE environment as well as applications outside DCAE. These applications can collect customer events and perform mediation of the usage and events to downstream BSSs or OSSs (Operational Support Systems). BSSs can also collect network events such as bill-impacting configuration changes, consumption or any new bill-impacting network product or service which can in turn be used for various purposes such as rating, balance management, and charge calculations. The following figure shows the DCAE architecture:
Figure 1. DCAE high-level architecture
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