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EMu Enhancements and Developments for NHM Collections Database Manager

Explore EMu's object-oriented data model and convenient management features with relational functionality. Supporting digitization programs, image loading, batch operations, and more. Enhance your collections information with IMu API and barcode utilization.

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EMu Enhancements and Developments for NHM Collections Database Manager

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  1. EMu enhancements and developments Darrell J. Siebert NHM Collections Database Manager

  2. EMu • Object oriented data model • Convenient for collections management purposes • Some relational functionality • Can link between some modules in many-to-1 relationship • Client-Server architecture • EMu user community-wide aspects server side • NHM bespoke aspects client side • Indexing methods to support data model • ‘joins’ not supported

  3. EMu enhancements and developments to support digitisation programme • Export of data for NHM data portal (Informatics Initiative) • Server side image loading • Batch Operations • IMu • Barcodes

  4. Data export for data portal • EMu data model and indexing methods not suitable for our needs for fast web display • ‘Table dump’ -- core product functionality • Initial dump of data from relevant tables • Only records with appropriate security setting are exported! • Automatic weekly change list • Informatics Initiative team structures and indexes data to suit needs of data portal

  5. Server side image loading • Images typically processed client side (on desktop PC) • Can be ‘slow’: > 10 min for 220MB Mellon Project botanical image • 100,000 Mellon images: 1.9 years to load • Bulk server side image loading (images processed by server) • 220MB Mellon Project image processed in 1 min • 100,000 Mellon images: 69 days to load • Effectively 24/7 background process • Currently using 1 core; can increase this but need to understand impact on server performance

  6. EMu Batch Operations module: dataset cleanup • Collections digitisation programme: high quality, end-to-end outcomes • Collections information in digital form associated with appropriate image(s) • High quality collections information – our biggest challenge • Duplicates • Identical records • Near identical records for same information • EMu Batch Operations module • Standard, client side ‘Merge’ operation addresses duplicate records • Bulk ‘Merge’ operations moved to server side • Frees client for other uses • Effectively 24/7 background process

  7. IMu API • IMu – api delivered as standard with EMu • Standard functionality: query; insert; update; and delete • IMu is ‘EMu data model aware’ • IMu is ‘EMu security model aware’ • Informatics Initiative team exploring delivering data to a scratch pad for the SCORE project using IMu api • With appropriate developer expertise IMU can enable development of mobile (tablet) applications

  8. Barcodes • Labels too small to fit much information on • Palaeo labels 42x42mm • Slide labels 25x25mm (or smaller) • Barcode • Machine readable object • Encodes registration number • Can be linear or 2D -- these are 2D - 5x5mm • Can be ‘read’ with mobile phone • Link to richer information • Wireless infrastructure • Mobile devices and applications

  9. Questions

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