What is Total Sustainability Indicator (TSI)

Green ICT Practices fall in two different extremes of either only recommendations to reduce the resource usage such as electricity, or high level strategic management techniques such as Green Balanced Scorecard. The one extreme is very micro level operational approach and the other extreme is just paper strategies without a roadmap for total sustainability. This chapter proposes the enterprise architecture framework and mathematical model providing dynamic model for total sustainability. A brief description of currently popular Green ICT Metrics in practice is presented, together with a discussion of architectural frameworks providing three different architecture layers and a roadmap to achieve desirable “total sustainability indicator (TSI™) - a measurement framework based on mathematical models and game theory.