This property has been added to support backward compatibility and announce to the metadata consumers which ADMS profile is used. However, as far as we know, no organisations is implementing ADMS.SW or ADMS (except maybe for W3C). Furthermore, we have seen in our daily utilisation of ADMS-AP that this field was never filled in. This can also be explained by the range of the property (i.e. adms:Asset), which makes the metadata publisher obliged to describe the ADMS asset he is using.