Successfully reported this slideshow.
We use your LinkedIn profile and activity data to personalize ads and to show you more relevant ads. You can change your ad preferences anytime.

What Can We Do About Our Legacy Data?

1,262 views

Published on

Presentation at the Cataloging Norms Interest Group at the ALA Annual Conference in San Francisco, Saturday, June 27, 2015.

Published in: Technology
  • Be the first to comment

What Can We Do About Our Legacy Data?

  1. 1. D I A N E H I L L M A N N C A T A L O G I N G N O R M S I G A L A A N N U A L 2 0 1 5 S A N F R A N C I S C O WHAT CAN WE DO ABOUT OUR LEGACY? 6/27/15 ALA 2015 Cataloging Norms
  2. 2. MORE QUESTIONS THAN ANSWERS • How do we think we’ll use the legacy MARC data? • Will we map once and discard the old data? • This was the usual data migration path for ILS data • Will we continue to maintain older data ‘just in case’? • How will the changes in sharing paradigms affect how some important functions are managed? 6/27/15 ALA 2015 Cataloging Norms
  3. 3. WHAT WILL WE USE LEGACY DATA FOR? • Have we agreed yet on what functions we want to support? • Local discovery services? • Circulation? • ILL? • What else? • What does expansion of sharing into the larger data world buy us? 6/27/15 ALA 2015 Cataloging Norms
  4. 4. IS EXPOSING LINKED DATA THE SAME AS SHARING DATA? • Do we know what sharing partners will want? • What if they’re not using the same schema we are using? • Is consensus necessary? Can’t we expose everything and let others pick and choose? • Do contractual agreements and licenses still hold sway when we stop exchanging ‘records’? • What about those still tied to MARC? Can we still include them? How can we accomplish that? 6/27/15 ALA 2015 Cataloging Norms
  5. 5. Common Cache Local Cache (a.k.a. Catalog) Other Local Cache 6/27/15 ALA 2015 Cataloging Norms
  6. 6. THE OLD SHARING MODEL • Data passes through a central cache, where identity management and quality control occur • Caches at either end follow agreed upon standards to participate • System of transaction charges supports the central functions 6/27/15 ALA 2015 Cataloging Norms
  7. 7. Common Cache Local Cache Exposed Data 6/27/15 ALA 2015 Cataloging Norms
  8. 8. THE NEW SHARING MODEL • Some exchange of data between local cache and central cache may happen much as before, but the local cache is likely to have more choices for data acquisition • Local caches expose data for use by other downstream users, bypassing the central cache’s identity management, quality control and fees • ‘New’ business models replace the old transaction based charges • Smaller services may spring up to support some of these functions for local caches 6/27/15 ALA 2015 Cataloging Norms
  9. 9. DO WE KNOW WHERE WE’RE GOING? • Will we expect to ‘choose’ a schema and bring everything with us into that schema? • Will new ILSs emerge to assist with that? • What if we choose badly? Can we have a makeover? • Does it make sense to retain the legacy MARC data in a common cache? Or perhaps many local caches? • Can this strategy future proof our decision-making? 6/27/15 ALA 2015 Cataloging Norms
  10. 10. LEGACY AS VALUE • How do we maintain the value of our legacy data if our new data doesn’t integrate well with it? • How will we avoid losing data in the process of transforming it? 6/27/15 ALA 2015 Cataloging Norms
  11. 11. WHAT ABOUT MULTI-MEDIA? • How much should requirements for new media, ebooks, etc., drive our requirements? • What about other languages and scripts? • Can simple solutions work for the entire array of more complex materials and versions? • Do we all need to be using the same schema and doing the same thing? Can we still share data if we don’t? 6/27/15 ALA 2015 Cataloging Norms
  12. 12. OPTIONS TO CONSIDER • Bring the legacy records with us into new systems • Keep them as MARC or map them to new schema and toss the MARC? • Park the MARC, retain it as cache, just in case we need to re-do the mapping? • Does the solution depend on whether we can map MARC easily into something and back without significant loss? 6/27/15 ALA 2015 Cataloging Norms
  13. 13. WHERE DO MAPPING & PROFILES FIT? • Who will do the mapping? Will one map work for all of us and our various needs? • Why are application profiles useful, and how do we manage and share them • Can we manage and share maps as we do other resources (like vocabularies, for instance?) 6/27/15 ALA 2015 Cataloging Norms
  14. 14. TRANSITION ... • ... Not very comfortable • ... Not without significant challenges • We will prevail! Contact: Diane I. Hillmann Email: metadata.maven@gmail.com 6/27/15 ALA 2015 Cataloging Norms

×