Abstract: A method of controlling an adjustable chair comprising the steps of measuring the height of a person, entering the height of the person into a software application on a mobile device, taking a photograph of the person with a mobile device, analyzing the photograph to determine physical measurements of the person, storing the measurements in the mobile device; calculating optimum ergonomic adjustment of the chair based upon the stored measurements; and, transmitting signals to a controller in the chair to control actuators and adjust various components in the chair to achieve optimum ergonomic adjustment. The technology also includes the ergonomic task chair adjusted by the aforementioned method.