… instructions are given to develop a strategic intervention, starting by locating the weak points of the structure and ending with a brief description of certain categories of interventions. It follows analytical presentation of the Displacement Coefficient Method, which extends to investigating the applicability of the method, taking into account the characteristic properties of selected records of Greek earthquakes. The product of this in-depth investigation is a proposal to modify the mathematical expression, after which the correction factor C1 of the method is calculated….