The IBRS Investment Model and Methodology
Conclusion: The IBRS technology investment model only assesses costs. It shows costs in net present value terms and can also compare those costs with a typical total cost of ownership calculation. It does not measure so-called benefits or other intangible features of a product. Its principal aim is to reveal what an investment will cost over its duration and to do that as thoroughly as all the data available will allow. In addition the model can be customised and work with different data sets.