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CrossRef System Update

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Director of Technology Chuck Koscher's Presentation at the 2009 CrossRef Annual Meeting

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CrossRef System Update

  1. 1. System Update Chuck Koscher Director of Technology [email_address] <ul><li>Status </li></ul><ul><li>System Rewrite </li></ul><ul><li>Quality </li></ul>
  2. 2. <ul><li>Status: Deposits </li></ul>
  3. 3. <ul><li>Status: Queries </li></ul>Wiley: Jun 7,405,305 Jul 7,637,817 Aug 16,403,306 Sep 22,553,904 Oct 27,089,806 Browser plug-ins?
  4. 4. <ul><li>Status: </li></ul><ul><li>Resolutions </li></ul>Jan-Sep
  5. 5. <ul><li>Status: Other stats </li></ul>Nov 2007: 62,947,372
  6. 6. <ul><li>Availability > 99% </li></ul><ul><li>July 14: Changed a password which prevented monitor access </li></ul><ul><li>Status: System performance </li></ul>
  7. 7. <ul><li>Query response time is very dependent on load </li></ul><ul><li>Non-US monitor sites experience longer response times </li></ul><ul><li>Status: System performance </li></ul>
  8. 8. <ul><li>System Rewrite </li></ul>2009 2010 2011 Existing System (EDS) EDS mods to use NQS New Query System (NQS) New Deposit System (NDS) System Both query and deposit transactions Deposit transactions Query transactions <ul><li>New contract with Atypon </li></ul><ul><ul><li>5 year term, fixed annual fee </li></ul></ul><ul><ul><li>Co-development with CrossRef </li></ul></ul><ul><ul><li>CrossRef obtains intellectual property ownership </li></ul></ul><ul><li>Re-write will occur in two steps, first the query system then deposits. </li></ul><ul><ul><li>Non proprietary framework </li></ul></ul><ul><ul><li>Leverage proven technology </li></ul></ul><ul><ul><li>Architecture supports growth </li></ul></ul>
  9. 9. <ul><li>Quality </li></ul><ul><li>Metadata is good enough for linking … generally weak for other purposes. </li></ul><ul><li>Link persistence is strong, but could be better </li></ul><ul><ul><li>5-10% of tested DOIs fail to reach original target (or result in an error) </li></ul></ul><ul><li>Error reports from end users remain steady </li></ul><ul><ul><li>~3500 errors/month </li></ul></ul><ul><ul><li>20% get fixed by publishers (within 30 days) </li></ul></ul><ul><ul><li>20 notices/day to end users who reported the problem </li></ul></ul><ul><li>Coming in 2010: </li></ul><ul><ul><li>Quality audits initiated by CrossRef staff on targeted members </li></ul></ul>38,193,723 12,039,157 4,835,479 16,139,751 988,764 3,807,396 1,359,241 5,582,856 3,055,090 DOI Total Initial Only No First Name One Author No Article Title No Author No Page No Issue No Volume
  10. 10. Please help keep DOI links alive Thank You! www.crossref.org/help

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