SkillSelect is based on an electronic two-stage process whereby intending migrants:
(Stage 1) submit an Expression of Interest (EOI)
(Stage 2) are invited to apply for a skilled migration visa by the Department of Immigration and Citizenship (DIAC)
"Despite lodging an EOI, there is no guarantee that applicants will move on to stage two (ie. be invited to apply for a skilled migration visa). They will remain on a database of interested applicants ranked by points, date of application and occupation for up to two years. After that time’s up, if they haven’t been invited to apply for the visa, the EOI is removed and it’s game over – that application has failed."
get more info here => <a href="http://www.embraceaustralia.com/the-new-skillselect-migration-programme-an-overview-10074.htm" target="_blank">The new SkillSelect migration programme: an overview</a>