Match the conversion methods with the correct description in the system implementation step of the SDLC$.$

$1$

Phased

$2$ Parallel

$3$

Direct

$4$

Pilot

Match each of the options above to the items below.

shuts down the old system and starts the new system

Old and new systems run side$-$by$-$side for a while.

starts in one area of the organization and then is deployed to the rest of the organization

implements new areas of the system in a predetermined period of time