The first generation was a Publicly Available Specification (PAS) published in 2003;

The second generation was a revision to ISO/PAS 17712 published in 2006. The generations are cumulative except for some fine-tuning of earlier work;

The third generation of 17712 was published in September 2010, that is ISO17712:2010;

Continuing with the third generation, the copy in 2013 was named as ISO 17712:2013