View metadata, citation and similar papers at core.ac.uk brought to you by CORE provided by E-LIS repository Magnus Enger (11815) The concept of 'overlay' in relation to the Open Archives Initiative Protocol for Metadata Harvesting (OAI-PMH) Masters thesis in Documentation Science Faculty of Humanities University of Tromsø, Norway Fall 2005 Version 1.0 Edit: #1056, 2005-11-18 14:50 See: http://creativecommons.org/licenses/by-nc-sa/2.5/ 2 Table of Contents Chapter 1: Introduction .......................................................................................................... 6 1.1 An ecology of documentation.........................................................................................6 1.2 The concept of “overlay”................................................................................................7 1.3 The way forward.............................................................................................................9 Chapter 2: The changing face of scholarly documentation.................................................11 2.1 The remediation of scholarly documentation – from printed to networked................. 11 2.1.1 Recreating the printed journal in the networked environment..........................................11 2.1.2 Adapting to the networked environment...........................................................................12 2.2 The Open Access “movement”.................................................................................... 12 2.3 Open Access journals................................................................................................... 14 2.3.1 Born-open journals............................................................................................................14 2.3.2 Overlay journals................................................................................................................ 14 2.3.3 Converted journals............................................................................................................ 14 2.3.4 Other journals of interest...................................................................................................14 2.3.4.1 Hybrid journals..........................................................................................................15 2.3.4.2 Cooperating journals................................................................................................. 15 2.4 Open Access repositories............................................................................................. 15 2.4.1 Institutional repositories....................................................................................................15 2.4.2 Disciplinary repositories................................................................................................... 16 2.4.3 Funder repositories............................................................................................................16 2.4.4 Personal repositories......................................................................................................... 16 2.5 Forms of documentation...............................................................................................17 2.5.1 Pre-prints........................................................................................................................... 17 2.5.2 Post-prints..........................................................................................................................18 2.5.3 And everything else...........................................................................................................18 Chapter 3: Anatomy of the OAI-PMH..................................................................................19 3.1 Data providers and service providers........................................................................... 19 3.1.1 Data providers................................................................................................................... 19 3.1.2 Service providers...............................................................................................................19 3.2 XML over HTTP.......................................................................................................... 21 3.3 Resources, items and records....................................................................................... 21 3.3.1 Resources...........................................................................................................................21 3.3.2 Items.................................................................................................................................. 21 3.3.3 Records .............................................................................................................................22 3.3.3.1 Header....................................................................................................................... 22 3.3.3.2 Metadata ...................................................................................................................22 3.3.3.3 About........................................................................................................................25 3.4 Identifiers......................................................................................................................26 3.5 Six “verbs”................................................................................................................... 27 3.5.1 Identify.............................................................................................................................. 27 3.5.2 ListMetadataFormats.........................................................................................................28 3.5.3 ListSets.............................................................................................................................. 29 3.5.4 ListIdentifiers.................................................................................................................... 30 3.5.5 ListRecords........................................................................................................................31 3.5.6 GetRecord..........................................................................................................................31 3.6 Extending the OAI-PMH..............................................................................................32 Chapter 4: The diversity of existing OAI-PMH Service Providers....................................34 4.1 A survey of Service Providers......................................................................................34 4.2 Summary of features.....................................................................................................34 4.2.1 Search................................................................................................................................ 35 4.2.2 Browse...............................................................................................................................35 4.2.3 Outgoing links................................................................................................................... 35 4.2.4 Equation search ................................................................................................................ 36 4.2.5 Citation analysis................................................................................................................ 36 3 4.2.6 Annotations/comments......................................................................................................37 4.2.7 Collaborative filtering....................................................................................................... 37 4.2.8 “Shopping cart”................................................................................................................. 38 4.2.9 Search history....................................................................................................................38 4.2.10 Alerting............................................................................................................................38 4.2.11 Virtual collections........................................................................................................... 39 4.2.12 Rating and reviewing.......................................................................................................39 4.2.13 Conclusion.......................................................................................................................39 Chapter 5: The prototype – colLib.info................................................................................ 40 5.1 Web-specific forms as inspiration................................................................................40 5.1.1 Folksonomies/tagging/social bookmarks.......................................................................... 40 5.1.2 Wikis..................................................................................................................................42 5.1.3 Content syndication, RSS/Atom....................................................................................... 43 5.2 Features of the prototype.............................................................................................. 44 5.3 Implementing the prototype..........................................................................................44 5.3.1 Selecting the platform: “LAMP”.......................................................................................45