The implementation of a larger IT project is usually preceded by an investment decision. For this purpose, the expected benefit is compared to the effort involved or an ROI calculation is performed. In the case of large, complex change projects,
especially the benefit-influencing variables are multi-layered and often not easily measurable, as they are of a qualitative nature. The aim is to first structure and record the expected benefits and costs.
These items are measured in monetary terms in the benefit area on the basis of valid assumptions as far as possible and presented over an agreed period of time. This provides the basis for determining the net present value (NPV) as the final indicator of the expected result of the investment. A decisive factor in achieving this planned value is that the initially estimated and planned benefit and cost values are
consistently and regularly collected during the course of the project and especially after its completion. Especially the subsequent benefit analysis is often neglected or missed. The consequence is that no suitable reference data is available for further investments and no sound statement can be made as to whether a project has paid off as planned.