Digitisation of Tell el-Daba resources
We have created digitisation workflows for all digital and analogue resources. A download of templates for future projects on TD resources can also be found here in the download section (https://4dpuzzle.orea.oeaw.ac.at/downloads) and they are also available directly via ARCHE (section: AboutThisArchive_Archivinformation_E73, folder: Download4FutureProjects).
Analogue resources - scanning and metadata creation workflow
- Scanning: According to different requirements for different resource types (Table 1).
- Metadata creation: includes creation of the unique identifier for the resource and the scan title (a short description of its content) which automatically creates the filename in the spreadsheet; entering identifiers of archaeological objects and excavation objects, loci IDs to link the record to them; entering additional metadata for the respective resource and the digitization process (like scale, ppi rate and used hardware);
- If necessary, create the relevant identifiers in the master metadata table.
- The analogue resource is marked with a pencil to show that it has been scanned (name of person who created the scan, date).
- If necessary (e.g when irregularities were encountered during metadata creation and a deviation of standard procedure was made), data logs have to be updated.
- At the end of each workday, all metadata files were committed to the git-repository. Additionally, we created backups of all updated files by copying them into a backup folder on our network drives.
- Survey of digital resources in legacy data folder to omit duplicates and versions of files, decide which files to preserve.
- Development of a workflow (based on Good practice guides for long-term preservation of digital objects (ADS 2017, IANUS 2014; finally ARCHE guides https://arche.acdh.oeaw.ac.at/browser/deposition-process ).
- Preparation of born-digital data for archiving (conversion into durable file formats suitable for long term preservation according to ARCHE https://arche.acdh.oeaw.ac.at/browser/formats-filenames-and-metadata#formats ; correction of file names; metadata). A very detailed documentation of the workflow is available here and will be made accessible via the project webpages and will also be archived in ARCHE (‘AboutThisArchive_Archivinformation_E73’).
- Iterative file checks when parts of data were ready -> corrections, until data was in good shape.
- Completion of preparation of data
|Resource||Scanner||ppi||File size each|
|B&W and colour photo negatives||Noritsu HS-1800 (in 2nd part of project)||3130x2075
|18,6 - 65,8 MB|
|Find sheets||Epson 11000XL||300 ppi||45 MB|
|Field drawings||Epson 10000XL/Epson 11000XL/WideTek 25/ EPSON GT 20000||600 ppi||Average 250 MB|
|Convolute cards||Epson 11000XL||300 ppi||94 MB|
|Find drawings||Epson 11000XL||1200 ppi||32 MB|
|Field diaries||Epson 11000XL||300 ppi||5 MB/sheet|
Table 1: Scanning standards. File resolutions for scanning analogue documents followed the recommendations of good practice guides (ADS, Archaeological Data Service/Digital Antiquity 2017, IANUS, Forschungsdatenzentrum Archäologie und Altertumswissenschaften 2014).