Obama’s Executive Action on Immigration Explained

In the immigration context, parole refers to admit an individual
to temporarily enter the United States for purposes of significant public benefit
or for humanitarian reasons without technically admitting the person into the country.
President Obama’s immigration reform changes somewhat the policy. 
“Advance parole” and “parole-in-place” are forms of parole explains Brian D. Lerner.
Advance parole refers to giving an individual currently residing in the United States
in a temporary status permission to travel abroad for a short period
and return to the United States without jeopardizing the existing status.
President Obama’s immigration reform also deals with  Parole-in-place.
if they are otherwise eligible.

Secretary Johnson announced new policies to protect unauthorized families of the U.S. military and of those seeking to enlist.
In November 2013, DHS issued guidance permitting parole-in-place for unauthorized family members of military personnel and veterans.
The new guidance will expand the availability of parole-in-place,
Armed Forces.

The new DHS instruction will ensure consistent application across the department.
This might be a very good way for somebody to adjust status in the U.S. Brian Lerner explains that they could get the parole, come back into the U.S. and under certain circumstances adjust.

President Obama’s immigration reform also adds a completely new parole for investors, researchers, and founders of start-up enterprises.