Economic analysis of cloud-based desktop virtualization implementation at a hospital

Table 2 Assumptions for economic analysis

Classification	Assumptions
Operation period	2012 to 2016 (five years)
Annual effects	Effects occur in the same manner every year. The expected effect occurring after the operation period is not reflected.
Work utilization	All users at SNUBH were assumed to utilize VDI beginning in 2012.
Discount rate	4.66%^a
Exchange rate	US$1= KRW 1,117.5^b
ROI	Calculated based on the present value.
Present value computation	Discounted cash flow (DCF) was used.
Rate of decrease of time spent	20% decrease from the previous year
	-Average recovery time due to reduced PC errors and difficulties
	-Average update time due to reduced application and OS update time
	-Average time taken resulting from reduced account management time
Rate of service demand decrease	10% decrease from the previous year
Rate of service demand decrease	- Service demand due to reduced PC errors and difficulties

^aThe discount rate was set as 4.66%, which was the average interest rate of corporate bonds that Bank of Korea reported in 2010.
^bIt was an exchange rate that announced by the Korea Exchange Bank on March 8, 2012.

ISSN: 1472-6947