For example, from Australian program, it is clear that
And this is about "ranking" :
Somewhere I read the same about EE in Canada.An ‘occupation ceiling’ may be applied to invitations issued under the independent, skilled regional (provisional) visas. This means there will be a limit on how many EOIs can be selected for skilled migration from an occupation group. This ensures that the skilled migration program is not dominated by a small number of occupations. Once this limit is reached, no further invitations for that particular occupation group will be issued for that program year. Invitations will then be allocated to intending migrants in other occupation groups even if they are lower ranking. You can view the occupation ceilings that apply to SkillSelect at http://www.immi.gov.au/Work/Pages/SkillSelect/SkillSelect.aspx
And this is about "ranking" :
So, if you did not get ITA "this draw" you will see (post factum!) was is your ranking. And actually there is no use to know you "ranking" in "failed" draw if you do not know what is coming in the next one.You will not be notified of the progress of your EOI or be able to obtain any updates on the likelihood of receiving an invitation. After each invitation round for the independent and skilled regional (provisional) sponsored visas, the Department will publish on the SkillSelect website the lowest points scoring points test mark that allowed an EOI to be invited. This will give you an indication of your potential for receiving an invitation in future rounds.