A MicroStrategy system is built around a three-tier or four-tier structure. The diagram below illustrates a four-tier system.
|•||The first tier, at the bottom, consists of two databases: the data warehouse, which contains the information that your users analyze; and the MicroStrategy metadata, which contains information about your MicroStrategy projects. For an introduction to these databases, see Storing information: the data warehouse and Indexing your data: MicroStrategy metadata.|
|•||The second tier consists of MicroStrategy Intelligence Server, which executes your reports against the data warehouse. For an introduction to Intelligence Server, see Processing your data: Intelligence Server.|
If MicroStrategy Developer users connect via a two-tier project source (also called a direct connection), they can access the data warehouse without Intelligence Server. For more information on two-tier project sources, see Tying it all together: projects and project sources.
|•||The third tier in this system is MicroStrategy Web or Mobile Server, which delivers the reports to a client. For an introduction to MicroStrategy Web, see Administering MicroStrategy Web and Mobile.|
|•||The last tier is the MicroStrategy Web client or MicroStrategy Mobile app, which provides documents and reports to the users.|
In a three-tier system, Developer is the last tier.
For a more complete discussion of business intelligence architecture, see the first chapter of the MicroStrategy Project Design Guide.