A system comprising: a paver comprising a temperature measurement device for continuously detecting temperature values of a pavement laid by means of the paver; an image recording unit; and an evaluation unit, the evaluation unit being configured to determine an area of the laid pavement as a deviation area, if, based on temperature values detected for said area, one or more deviation criteria are fulfilled, wherein the determination is carried out during laying and in temporal proximity to the detection of the temperature values for said area, and said system is configured to generate, making use of the image recording unit, an image assigned to the deviation area, wherein the evaluation unit is configured for assigning the image to the deviation area as auxiliary information, and the system is configured for storing the auxiliary information together with a two-dimensional profile of the laying temperature formed on the basis of the detected temperature values, wherein the system is configured for storing the detected temperature values line by line, each line representing the temperature profile of the paved layer transversal to the travelling direction of the paver, and the image recording unit is configured for generating as image an overall image of a section of the laid pavement, and wherein the deviation area is a first deviation area and the evaluation unit is configured for assigning the same image to a second deviation area as auxiliary information on the basis of a temporal-spatial relationship between the first and second deviation areas (6a, 6b) and one or more predefined parameters representing causes for incorrect measurements, wherein the first and second deviation areas (6a, 6b) are arranged in subsequent detections of temperature and wherein the image recording unit comprises an optical camera. a paver comprising a temperature measurement device for continuously detecting temperature values of a pavement laid by means of the paver; an image recording unit; and an evaluation unit, the evaluation unit being configured to determine an area of the laid pavement as a deviation area, if, based on temperature values detected for said area, one or more deviation criteria are fulfilled, wherein the determination is carried out during laying and in temporal proximity to the detection of the temperature values for said area, and said system is configured to generate, making use of the image recording unit, an image assigned to the deviation area, wherein the evaluation unit is configured for assigning the image to the deviation area as auxiliary information, and the system is configured for storing the auxiliary information together with a two-dimensional profile of the laying temperature formed on the basis of the detected temperature values, wherein the system is configured for storing the detected temperature values line by line, each line representing the temperature profile of the paved layer transversal to the travelling direction of the paver, and the image recording unit is configured for generating as image an overall image of a section of the laid pavement, and wherein the deviation area is a first deviation area and the evaluation unit is configured for assigning the same image to a second deviation area as auxiliary information on the basis of a temporal-spatial relationship between the first and second deviation areas (6a, 6b) and one or more predefined parameters representing causes for incorrect measurements, wherein the first and second deviation areas (6a, 6b) are arranged in subsequent detections of temperature and wherein the image recording unit comprises an optical camera.