Answer Posted / venu
There are 4 Tiers:
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The platform for SAS BABIEBI consists of multiple-tier environment, that is
1. Server Tier
2. Middle Tier (is known as Web Tier)
3. Client Tier and
4. Data Tier
The (4 Tiers) servers and applications are rely on a common, integrated Metadata Environment.
Server Tier: OLAP Server, Object Spawner, Workspace Server, Pooled Workspace Server, Stored Process Server etc.
MiddleWeb Tier: WRS, Dashboard, Portal, Stored Process Web App. etc. (Web Applications, URL based)
Client Tier: AMO, EG, OLAPCube Studio, InfoMap Studio, DI, SMC etc. (Client Applications)
Data Tier: SAS Datasets, OLAPCubes, RDBMS Table, SPD Files, ERP etc.
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