Cisco Cisco 4402 Wireless LAN Controller 白皮書
Total Economic Impact Study of Unified Wireless Network
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TEI Framework: Summary
Considering the financial framework constructed above, the results of the costs, benefits, risk, and
flexibility sections using the representative numbers can be used to determine a return on
investment, net present value, and payback period.
flexibility sections using the representative numbers can be used to determine a return on
investment, net present value, and payback period.
Table 18 and 19 present the risk-adjusted values after applying the risk-adjusted method indicated
in the Risk section.
in the Risk section.
It is important to note that values used throughout the TEI Framework are based on in-depth
interviews with four organizations and the resulting composite organization built by Forrester.
Forrester makes no assumptions as to the potential return that other organizations will receive
within their own environment. Forrester strongly advises that readers use their own estimates within
the framework provided in this study to determine the expected financial impact of migrating to
Unified Wireless Network.
interviews with four organizations and the resulting composite organization built by Forrester.
Forrester makes no assumptions as to the potential return that other organizations will receive
within their own environment. Forrester strongly advises that readers use their own estimates within
the framework provided in this study to determine the expected financial impact of migrating to
Unified Wireless Network.
Table 18: Summary Financial Non-Risk-Adjusted Cash Flow
Category
Initial
Year 1
Year 2
Year 3
Total
Present
value
Total
costs
($331,502) ($2,568) ($2,568)
($2,568) ($339,206) ($337,888)
Total
benefits
$289,312
$289,312 $289,312 $867,936 $719,475
Total
(non-risk-adjusted) ($331,502)
$286,744
$286,744 $286,744 $528,730 $381,587
Return on investment
113%
Payback period (months)
14
Source: Forrester Research, Inc.
Table 19: Summary Financial Risk-Adjusted Cash Flow
Category
Initial
Year 1
Year 2
Year 3
Total
Present
value
Total
costs
($331,339) ($2,311) ($2,311)
($2,311) ($338,272) ($337,086)
Total
benefits
$260,381
$260,381 $260,381 $781,142 $647,529
Total
(non-risk-adjusted) ($331,339)
$258,070
$258,070 $258,070 $442,870 $310,443
Return on investment
92%
Payback period (months)
15
Source: Forrester Research, Inc.