Welcome to another post to the Archaeology Data Service (ADS) Day of Archaeology blog 2012
If you want a quick introduction to the ADS and what we do see last year’s post.
We have contributions from two members of staff from the ADS this year, one from Stuart Jeffrey ADS deputy Director (Access) and this one from Ray Moore one of the ADS Digital Archivists.
As a digital archivist at the Archaeology Data Service, my day to day activities involve the accessioning the digital data and other outcomes of archaeological research that individuals and institutions deposit with us, developing a preservation programme for that data, but also curating existing ADS collections.
Today, and indeed for the past week, I have spent much of my time working on the Grey Literature Library (or GLL). The GLL is an important resource for those amateur and professional archaeologists working in archaeology today providing access to the many thousands of unpublished fieldwork reports, or grey literature, produced during the various assessments, surveys and fieldwork carried out throughout the country. These activities are recorded using OASIS (or Online AccesS to the Index of archaeological investigationS) and after passing through a process of validation and checking the reports produced in these projects arrive at the ADS. On first impressions then the digital archive may seem like an ‘end point’, a place where archaeological grey literature goes to die, but the ADS, through the GLL, makes these reports available to other archaeologists and the wider community allowing the grey literature to inform future research. At the same time as a digital archive we take steps to preserve these reports so that future generations can continue to use the information that they contain; an important job as many of these reports do not exist in a printed form.
So what does digitally archiving a grey literature report entail? Initially all the grey literature reports must be transferred from OASIS to the ADS archive; the easiest part of the process. More often than not the report comes in a Portable Document Format (or PDF) form, and while this is useful for sharing documents electronically it is pretty useless as preservation format for archiving. One of my jobs is to convert these files into a special archival form of PDF, called PDF/A (the A standing for Archive). Sound’s easy, but often it can take some work to get from PDF to PDF/A (my all time record is 2 hours producing a 900mb PDF/A file). These conversions must also be documented in the ADS’ Collection Management System so that other archivists can see what I did to the file to preserve the file and its content. While OASIS collects metadata associated with project, the ADS uses a series of tools to generate file level metadata specific to the creation of the file, so that we can understand what and how the file was created. Only once these processes are complete can the file be transferred to the archive, with a version also added to the GLL so that people can download and read the report. With a through flow of some 5 to 600 reports per month the difficulties of the task should become apparent; and all this alongside my other duties as a digital archivist. This month’s release includes an interesting report on The Olympic Park Waterways and Associated Built Heritage Structures which stood on the site now occupied by the Olympic Park. Anyway I’d better get back to it!