[adityakothadiya]

Immigration processing is one, atleast in US.

I've still not understood why it takes 4-5 years to USCIS office to grant or deny residency of an applicant. How can that process be so slow? All papers and evidences are submitted on day one. Then why it takes 4-5 years to process back-log applications and then process yours.

I know there is quota per country for per year. But not all quotas are full by all countries. Why can't they do shuffling and do dynamic quota management?

This inefficiency is frustrating to many individuals, so definitely need some technical innovation to process things efficiently.

[jacquesm]

That's because it is a deterrent.

[anamax]

> I've still not understood why it takes 4-5 years to USCIS office to grant or deny residency of an applicant.

What makes you think that the delay has anything to do with the actual processing of the application?