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A '''software design description''' (aka '''software design document''', , '''SDD''', or '''design document''') is a written description of a software product, that a software designer writes in order to give a software development team overall guidance to the architecture of the software project.

== Description ==

An SDD usually accompanies an architecture diagram with pointers to detailed feature specifications of smaller pieces of the design.

Practically, the description is required to coordinate a large team under a single vision, needs to be a stable reference, and outline all parts of the software and how they will work.

== See also ==

* [[Game design document]]
* [[High-level design]]
* [[Low-level design]]

== External links ==

* [https://en.wikipedia.org/wiki/Software_design_description Software design description] @ Wikipedia

[[Category:Software engineering]]