外审和内审都是一个unit group，可以算是紧密相关职业。请参考帖子 http://www.localau.com/viewthread.php?tid=1027642 中xiaoping410的回复，她说移民局认定工作经验里有一段话：In determining whether your skilled employment is closely related to their nominated occupation, the department will take into consideration the occupations within one unit group classified under Australian and New Zealand Standard Classification of Occupations (ANZSCO).
那个帖子中还有一个onejerry的tz贴上了VET的回复：As you noted, we do not do the skills assessment for external auditor. However, if you are having your skills assessed for Internal Auditor, then when we do the Points Test Assessment for Internal Auditor, we assess the last 10 years of employment to find out if it is ‘closely related’ to internal auditor. For our points test, we take ‘closely related’ to mean ‘in the same ANZSCO unit group’. Therefore, if your employment fulfils the requirements of an external auditor as listed in ANZSCO, we as the assessor for internal auditor say that the employment tasks are closely related to internal auditor.
This does not apply for the skills assessment, which needs to be ‘highly relevant’ not just ‘closely related’. For employment to be seen as highly relevant to internal auditor it has to be as an internal auditor.
我的理解是如果以internal auditor提名，那学习的专业就要highly related，但是claim 工作经验就可以一个unit group里面closed related