Images are routinely taken to document cultural heritage objects and samples. These images can be captured using a wide range of imaging devices and procedures, from simple visible images to X-radiographs. This example is intended to describe the generic relationships, rather than any more specific details, methods or procedures of each process. Also, the schematic listed here is intended to cover the creation of an analogue film and it relationship to the image it carries, the additional digitisation event has not been specifically modelled, but it would closely follow the relationships included in the description of other events listed here. When more detailed interpretations are required from individual pixel intensities or related spectral information, images need to be considered more as array of data points, with each pixel being described as an individual analytical measurement, which is considered further in the models listed here.