Solution Deployment Descriptor (SDD) is a standard XML-based schema defining a standardized way to express software installation characteristics required for lifecycle management in a multi-platform environment.

The SDD defines schema for two XML document types: Package Descriptors and Deployment Descriptors. Package Descriptors define characteristics of a package used to deploy a solution. Deployment Descriptors define characteristics of the content of a solution package, including the requirements that are relevant for creation, configuration, and maintenance of the solution content.