ON-LINE REFERENCES

IT Budgeting Tutorials, https ://www.rms.net/lc_learning_center_main.html

TCO Models, https://web.ics.purdue.edu/~kimfong/TCO/models.html

TCO models & approaches, http://h18000.www1.hp.com/models.html

Financial Primer: How to Calculate ROI, NPV, Payback and IRR, http://www.cioview.com/index.aspx?id=ResourcesWhitepapersFinancial

The IT Measurement Inversion, by Douglas Hubbard, http://www.cio.com/archive/enterprise/041599_checks.html

Computerworld: Calculating ROI is Tricky Business, by Marcia J.Wilson, http://www.computerworld.com/securitytopics/security/story/0,10801,83207,00.html