What are the three warehouse models?

What are the 3 data warehouse architectures?

Three-tier architecture: The bottom tier, the database of the data warehouse servers. The middle tier, an online analytical processing (OLAP) server providing an abstracted view of the database for the end-user. The top tier, a front-end client layer consisting of the tools and APis used to extract data.

What is warehouse model?

Data warehouse modeling is the process of designing the schemas of the detailed and summarized information of the data warehouse. The goal of data warehouse modeling is to develop a schema describing the reality, or at least a part of the fact, which the data warehouse is needed to support.

What are the 3 characteristics of data warehouse?

The Key Characteristics of a Data Warehouse Large amounts of historical data are used. Queries often retrieve large amounts of data. Both planned and ad hoc queries are common.

What are commonly used data models for data warehouse?

Data warehouse modeling includes: Top Down / Requirements Driven Approach. Fact Tables and Dimension Tables. Multidimensional Model/Star Schema.