My teammate and I have been invited to a conference in Australia to present our paper. We think that we need a visitor visa (subclass 600), Business Visitor stream. However, my teammate wants to bring her father. What would the process be?
Do we apply for group processing?
And while applying should I add both of them as travel companions "Are there any other persons travelling with the applicant to Australia?"?
If your colleague and you are not family, you should apply separately. I was in a similar situation as yours some years ago: a colleague and I had to go together to OZ for work. We applied separately - the only coordination we did was ask each other "Got your visa yet?".
Turns out, my colleague wanted to bring the whole family for the trip, and there was no way I would've applied together with them: not family, not even the same citizenship. I did my thing and got my evisa in 2 hours, he did his and family, got it approved pretty fast too, but less quickly (took a day or so).
We didn't even book flights together: my colleague was hunting for the cheapest flights, whereas I wanted the most convenient flight.