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# Dimensions CM architecture

Dimensions CM configuration consists of the following layers:

- Presentation tier

- Business logic tier

- Database/metadata tier

- File/storage tier

The components in each tier can be installed on a single machine or scaled horizontally across multiple machines.

A Dimensions CM repository is the full set of stored requests and files (or items) and includes:

- A database that stores requests and metadata.

- An item library that stores items for one or more item types in the database. The item library directory can be located on a different network node from the database.

The following diagram illustrates the Dimensions CM architecture:

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See also:

- Network protocols
- Server configurations

https://admhelp.microfocus.com Dimensions CM 8942
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