Answer: Plunge installation
Explanation:
According to the given question, the Plunge installation is one of the conversion process which is used by the crispies manufacturing firm the processing batch system into the new assembling line process.
The plunge installation system is also known as the direct installation in which the companies or an organization are shut down their old systems and start install the updated version so that they can easily communication with their clients and the customers in the market.
Therefore, Plunge installation is the correct answer.