Since March 2007, I have been engaged with the construction of a new Celtic Coin Index (CCI). This is a project that has been running at Oxford University since 1960 and records all known examples of Iron Age coins found. It was previously put online by Hooker and Perron and has been available since 2001. This has not been updated since, but has quite rightly been cited as a wonderful resource for numismatists and the layman.
The Scheme was approached to build on the work of the CCI in early 2005, however, my programming skills were not really up to the task and we did not have any money (neither did they!) to engage a development team. Since then, I have taught myself more about PHP programming and interactive design and have now built a new version of the CCI. This is still in beta phase for a few more months, I want to get feedback, clean up the code and enhance certain aspects of the site. It is the most complex thing I have built, and there will be some bugs inevitably. There’s a few CSS discrepancies, but they will be ironed out shortly. I need a better testing environment at work!
So what is different to the old CCI?
- Built on LAMP platform (linux, apache, MySQL and PHP
- Revised database schema, with new data incorporated
- Uses AJAX to enhance user experience
- Uses google sitemaps to tell Google what to index
- Uses an integrated Google map to visualise the distributed findspots of these coins
- Dynamic image generation from searches – typology can be done on the fly
- Variety of layers added to map to demonstrate distribution of other artefacts
- Allows users to use social web techniques such as bookmarking and voting
- Permission based browsing for researchers
- Multiple download formats for data XML (DCN & MIDAS), RSS, geoRSS (simple – thinking about GML), CSV, JSON, txt and KML
- Graphs can be drawn for data comparisons
- Images can be downloaded for academic use
- PAS data is incorporated
- Grid references have been cleaned and coins relocated on dry land
- Data entry system for adding new coins
- Tagging introduced for user classification of coins
- Integrated with a wordpress blog for discussion articles on Iron Age coins to be posted.
- Incorporates microformats
- An OAI interface has been implemented so that external organisations can consume these data for other services
- A documented RESTful API has been built – details available on demand – so that these data could be mashed up on other sites. Please do!!!! Fully ready by the end of June.
There are a few other things being considered for inclusion within the database’s framework, but perhaps most prominently, the ability to record your own coin on the database if it is not recorded elsewhere.
So what has been the cost for creating this resource; my time (approx 1 hour a day) and £3000 for an intern to clean the data for spatial analysis and to teach her GIS. The fruits of this work will be written up in a separate paper.
I hope that the new resource proves useful to academics, numismatists and anyone interested in coins.