What to read after Digital Preservation?

Preservation or permanent availability of the record of science as represented by scientific information is one of the processes which is dramatically affected by the change to an all digital world. While once the printed page was the basic medium and was archived by libraries, now the record exists in a number of locations and in many cases is not printed. Preservarion is now a matter of identification of the item in the first place, the location is not always so obvious; then ascertaining the preservation policy of the keeper - who may not be the owner; ensuring that there will be preservation or archiving and keeping track of the technology so that the item can be read in the future, despite obsolescence or other technology changes. This work covers the viewpoints of various technologies which are important in the preservation process.