Patent ID: 7805329
Filing Date: 2010-09-28
Classification: G06Q

Abstract:
1. A method for evaluating at least one of a device and an application used in a technical system, and a method for establishing the technical system, with an assessment carried out based on costs for risks, comprising: a calculating device determining risk costs causes in the technical system; assessing possible risk costs depending on the risk costs causes, intuitively assigning risk cost data values to intuitive risk costs assessment numbers for possible risk costs representing monetary waste of the technical system, respectively, representing said intuitive assigning in an initial physical representation of the costs for risks using a first coordinate system of risk costs to risk costs assessment numbers and having a risk costs axis with a decadic logarithmic scale and a risk costs assessment number axis with a linear scale; assuming that the risk cost data values have errors randomly and stochastically distributed, in particular normally distributed; the device determining a variance and an expected value for the possible risk costs based on a probability to determine actual risk cost data values to which are assigned intuitive risk cost assessment numbers, respectively; the device transforming the initial physical representation of the costs for risks into an intermediate diagram using a second coordinate system of intuitive risk assessment to risk costs in monetary units; the device implementing regression of the intuitive assigning on a straight regression line by an indirect linear regression using a non-linear regression to produce a curve in the intermediate diagram; the device reverse transforming the curve in the intermediate diagram back into a straight regression line in the initial physical representation of the costs for risks; the device determining actual overall risk costs from a sum of the actual risk costs by the straight regression line of the actual risk cost data values in the initial physical representation of the costs for risks after the reverse transforming; and the device assigning a probability such that the sum of the actual risk costs remains below an upper limit, with an assumption that the risk costs sum exhibits a probability distribution, in particular a normal distribution, such that quantiles are calculated for the data representing monetary waste of the technical system.