Home > Workload Solutions > Oracle > White Papers > Solution Insight: Oracle Analytics Server with Dell PowerFlex Infrastructure > Generic OAS architectural overview
OAS is Oracle’s on-premises analytics and business intelligence (BI) platform that provides the full range of features and capabilities as the Oracle Analytics Cloud (OAC). OAC is Oracle’s cloud-based analytics platform. OAS is the successor to Oracle Business Intelligence Enterprise Edition (OBIEE) product. OAS offers customers a seamless path to connect and move to the cloud at their own pace. Existing OBIEE customers who upgrade to OAS can benefit from adding augmented analytics and AI-powered data enrichment to their existing environment and other rich and advanced features offered by OAS over OBIEE.
Figure 1 shows Oracle’s recommended enterprise reference topology for deploying OAS and its components in a high available (HA), scaled-out, and secure environment. The following sections provide a high-level overview of this Oracle’s recommended three-tier enterprise architecture which includes the web tier, the application tier, and the database tier.