Deciding what to archive
Vector images are often created in archaeology as a step within a larger project workflow either as the output from a data processing application or as a stage towards producing high quality illustrations. In both cases such files represent the creation of a ‘final product’ image, usually for inclusion within a project report, and many are often formatted in terms of a printed page. A further step may even see vector images rasterised as JPG or TIFF files prior to their inclusion within a document. It is therefore important for the data creator to evaluate the importance of the vector image within the workflow and to decide whether the file in question has reuse value in that particular format. In cases where the image exists in both its source (e.g. CAD) and derived (e.g. raster images) forms then it may be decided that the vector image is not retained and archived.