Accredited Symbian Developer (ASD) was a (now defunct) accreditation program for software developers using Symbian OS, a mobile phone operating system, having been terminated in April 2011 after the closure of the Symbian Foundation. The scheme was operated independently on the Foundation's behalf by Majinate Limited, which also closed for business when the Foundation closed. Qualifications required The primary qualification for being accredited as an ASD was a pass in an on-line multiple choice examination that adhered to the Principles of Symbian OS curriculum. This curriculum was reviewed on an annual basis to ensure that the accreditation kept up to date with developments in the Symbian operating system. The final release of the curriculum was made in 2009 although it still adhered closely to the ASD Primer, a learning aid published by Wiley under the Symbian Press imprint. Curriculum The final version of the curriculum contained the following major topics: C++ Language Fundamentals Classes And Objects Class Design And Inheritance Symbian OS Types & Declarations Cleanup Stack Object Construction Descriptors Dynamic Arrays Active Objects System Structure Client Server File Server, Store & Streams Sockets Tool Chain Platform Security Binary Compatibility Each topic was assessed and marked separately in the examination and a pass required both a high score and coverage of the majority of topics. See also Software development Software engineering Software development process Computer and video game development External links Symbian developer website The Symbian Foundation website Information technology qualifications Symbian OS