Deformation measurements are precise measurements made periodically to determine the movements or changes in shape of structures, soils and surfaces that may occur over time due to various reasons.

There are different methods used in deformation measurements such as Geodesy, Photogrammetry, Lidar, Laser Scanning and Remote Sensing. The method to be used is determined as a result of the examination and analysis made in the displacement area. At the same time, one of the main reasons for effective and accurate deformation measurements is the correct planning of the measurement period.