TEI not only measures costs and cost reduction (areas that are typically accounted for within IT) but also weighs the enabling ...

TEI not only measures costs and cost reduction (areas that are typically accounted for within IT) but also weighs the enabling value of a technology in increasing the effectiveness of overall business processes. For this calculator, Forrester employed four fundamental elements of TEI in modeling the financial impact of producing a TEI study: 1) cost and cost reduction, 2) benefits to the entire organization, 3) risk, and 4) flexibility. Given the increasing sophistication of IT investment cost analyses, Forrester's TEI methodology serves an extremely useful purpose by providing a complete picture of the total economic impact of purchase decisions.