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SDL Web core system diagram

The SDL Web core consists of Content Manager, Topology Manager and Content Delivery subsystems, the databases these subsystems require and the clients used to create content.

Content Manager is the environment for creating, managing and assembling the various Building Blocks used to build Web sites or content intended for other channels. Users create content using various Content Manager Clients and content is stored in the Content Manager Database.

Topology Manager maps publishable content to publish destinations. It presents Content Manager with a set of logical targets to publish to, and transforms those publish requests into actual deployment of publishable content to physical servers, Web sites and Web applications.

Content Delivery handles and processes content published from Content Manager, transforms the content into dynamic Web site content using the Content Delivery APIs, stores the published content in the Content Data Store (a file system, a relational database, custom storage media, or a combination of these), and puts the content on the Presentation Server, the machine that serves content to Web site visitors.