The Temporary Residence Transition stream
is for subclass 457/482 TSS visa holders who have worked for two or three years (depending on particular circumstances), while holding a subclass 457/482 TSS visas, in the same originally nominated occupation and with the same nominating employer. The nominating employer must be willing to support the nomination for the Permanent Residency.
The Direct Entry stream
is for applicants who have been nominated by their employer under the Direct Entry stream people who have never, or briefly, worked in Australia, or temporary residents who do not qualify for the Temporary Residence Transition stream
The Agreement stream.
is for people sponsored by an employer through a labour agreement.