Technical Outlook

CrossRef Annual Report 2013/2014

T E C H N I C A L O U T L O O K . The central focus of technical work at CrossRef continues to be on maintaining the optimal performance of the core system. In line with that, a major modification to the way the system processes queries is now in the testing phase, with deployment anticipated by the end of the third quarter of 2014. The modification addresses the long-held goal of improved scalability and performance for the system, to handle the ongoing growth in both its use and the amount of data it contains. The annual total of queries went from 726 million in 2011 to more than 1 billion in 2012, and the process becomes more onerous as there are more items to sort through. The modification employs the Apache Solr open source search platform, a new technology with capabilities beyond those of the relational database currently in use. Other notable improvements include a feature that notifies members when the processing of deposits is completed, using a Web callback technique that replaces sending log files via email. Although CrossRef has accepted deposits for standards for several years, the deposit schema as originally conceived is not ideally suited to their characteristics, which differ in important ways from those of journals and books. Where a journal article is a distinct entity (with occasional updates and corrections) and a book is a distinct entity (with its subsequent editions clearly distinguishable), a standard is a family of documents that grows through a life cycle of revision and updating, with adoption by national


CrossRef Annual Report 2013/2014
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