Skilled Independent Permanent Residence Visa Subclass 189
If you are a skilled in such a field that is highly required in Australia, then you can immigrate to Australia under this visa i.e. Skilled – Independent Visa (subclass 189), without any kind of state or family sponsorship.
Skilled Independent Permanent Residence Visa Subclass 190
The Employer Nomination Scheme is meant for highly skilled workers to obtain Australian permanent residency through sponsorship from an Australian employer.
Skilled Regional (Provisional) Visa (Sub Class 489)
This Visa is a temporary form visa valid for a duration of 4 years for candidates who have skills and capabilities which are required in a particular state or territories of the country as per independent states occupation list but who are not able to meet the requirement to obtain sponsored visa (subclass 190).
This visa is based on invitation. It allows you for living and working in Australia for the duration of 4 years and lets you travel number of times until the visa is valid. You can also apply for permanent residency in Australia.
Employer Nomination Scheme Subclass 186
Employer Nomination Scheme- It is primarily meant for skilled workers to work in Australia & settle as permanent residents there.