The ASSA2003 AIDS and Demographic model was published in November 2005 and is the most recent version of the ASSA model to be released by the Actuarial Society of South Africa. The model represents the HIV/AIDS epidemic and its demographic impact on the population of South Africa. The model extends the earlier ASSA2002 model by providing estimates of the impact of HIV/AIDS in each province.
The ASSA2003 and the Older Models are designed and calibrated for South Africa. The Actuarial Society of South Africa also develops models for other countries.
The ASSA Select model is a model that can be used to assess the impact of HIV/AIDS on workforce populations and other groups which have been selected in some way from the general population. The most recent version of the model to be published was published in June of 2006.