A method for producing formatted information related to appliances of an appliance chain, the appliance chain including at least one image-capture appliance and/or at least one image-restitution appliance, the method comprising:
- producing formatted information related to defects of at least one appliance of the appliance chain,
- wherein said at least one appliance of the appliance chain is configured to capture or restitute an image and is provided with at least one fixed characteristic or one variable characteristic depending on the image, the fixed characteristic or the variable characteristic associated with one or more values of characteristics, said values including characteristics of a focal length or focusing of said at least one appliance, and
- wherein said producing formatted information produces from a measured field measured formatted information related to the defects of said at least one appliance of the appliance chain, said measured field including at least one of the following,
- at least one of an image zone and an identifier of the image zone,
- an image representation of the image zone, and
- an reference representation of an reference zone;
- the measured field further including, for the image, at least one of said values of the variable characteristics.