I have a client which is looking at the ROI for deploying servers to their branch office. Right now PCs/Laptop and even VoIP phones from the branch office connects back to servers and Call Manager in the HQ.
After doing a POC for a Branch Office Scenario, the high management did not approve the purchase of servers for the branch office, which happen to be a vessel. :)
I have been told by the technical manager to justify the branch office scenario using some ROI tool.
Searching around and even trying to do my own, i found this tool: The Microsoft Branch Office Savings Calculator. https://roianalyst.alinean.com/branch/launch.html
"The Branch Office Savings Calculator was developed independently by leading IT research firm IDC, and leading ROI tool developer Alinean, Inc. "
Within 30 min i had a cool 87 page reports and the summary one of 9 pages. i think with some more thing customizing my data, i could have some i could hand over to my client and the senior management.
Give it a try if you have a similar scenario.