Olive Inc ,A Chain of Retail Outlets,is Converting Its Existing Billing

Multiple Choice

Olive Inc. ,a chain of retail outlets,is converting its existing billing systems to a more robust online tool.In this process,the organisation runs both the old and the new systems to compare their performances.In this case,the company is implementing the new system using ________ installation.

A) plunge
B) parallel
C) phased
D) pilot