Please note that as of October 24, 2014, the Nokia Developer Wiki will no longer be accepting user contributions, including new entries, edits and comments, as we begin transitioning to our new home, in the Windows Phone Development Wiki. We plan to move over the majority of the existing entries. Thanks for all your past and future contributions.
Symbian Signed is an industry wide testing and certification program for Symbian applications. It is used for Symbian C++, Qt and Python applications, and any other types of content packaged in SIS/SISX files.