Download presentation
Presentation is loading. Please wait.
Published byDarren Ray Modified over 9 years ago
1
DISCOVERY PRODUCTS AND SERVICES: Introduction and current trends Marshall Breeding Director for Innovative Technology and Research Vanderbilt University Library Founder and Publisher, Library Technology Guides http://www.librarytechnology.org/ http://twitter.com/mbreeding MARS Local Systems & Services Discovery Layer Discussion Forum
2
Description An introduction to the genre of next-generation catalogs or discovery products.
3
Crowded Landscape of Information Providers on the Web Lots of non-library Web destinations deliver content to library patrons Google Search / Google Scholar Amazon.com Wikipedia Ask.com
4
User expectations
5
Evolution of library collection discovery tools Bound handwritten catalogs Card Catalogs Library online catalogs – OPACs Next-Gen Catalogs / Discovery interfaces Web-scale discovery services
6
Bound Catalog
7
Card Catalog
8
Online Card Catalog
9
Web-based online catalog
10
Next-generation Catalog
12
Modernized Interface Single search box Query tools Did you mean Type-ahead Relevance ranked results Faceted navigation Enhanced visual displays Cover art Summaries, reviews, Recommendation services
13
Web site as menu of search options
14
Disjointed approach to information and service delivery Silos Prevail Books: Library OPAC (ILS module) Articles: Aggregated content products, e-journal collections OpenURL linking services E-journal finding aids (Often managed by link resolver) Local digital collections ETDs, photos, rich media collections Metasearch engines All searched separately
15
Lack of unified Web presence User’s don’t understand the distinctions we make Catalog? Articles and Databases? Digital Library? Search our Site? Search interfaces based on content formats or management applications Non-library Web sites are much more unified
16
A simple vision A single point of entry to all the content and services offered by the library …but with precision, nuanced sophistication, and multiple dimensions Search:
18
Web-scale discovery
19
Online Catalog vs. Discovery Layer Online Catalog Interface conventions from an earlier Web era Scope: Tied to the ILS and its content domain Discovery Layer Modern interface elements Scope: aims to address broad range of components that constitute library collections
20
Discovery Products http://www.librarytechnology.org/discovery.pl
21
Decoupled from ILS
22
Social discovery Tags, user-supplied ratings and reviews Leverage social networking interactions to assist readers in identifying interesting materials: BiblioCommons Leverage use data for a recommendation service of scholarly content based on link resolver data: Ex Libris bX service
23
Deep indexing Metadata can no longer serve as the only basis for discovery Increasing opportunities to search the full contents Google Library Print, Google Publisher, Open Content Alliance, government publications, etc. High-quality metadata will improve search precision Commercial search providers already offer “search inside the book” and searching across the full text of large book collections Important transition to full-text book search beginning in library projects HathiTrust indexing 6 million volumes Must become a routine component of library discovery Deep search highly improved by high-quality metadata
24
Discovery product Trend Initial products focused on technology AquaBrowser, Endeca, Primo, Encore, VUfind Mostly locally-installed software Current phase focused on integrated access to both local content and remote articles to deliver Web-scale discovery. Examples: Summon (Serials Solutions) WorldCat Local (OCLC) EBSCO Discovery Service (EBSCO) Primo Central Encore Synergy
25
Beyond Federated search Federated Search / Metasearch use real-time queries against multiple information targets No centralized index – presentation of dynamic results Shallow results -- only a few results initially fetched from each target Difficult to calculate relevancy Performance challenges
26
Beyond local discovery interfaces Pre-populated indexes Web-scale Exploits the full depth and breadth of library collections Beyond the bounds of the local library’s collection Targets the universe of objective, vetted library content
27
Pre-populated discovery services New-generation interface Harvested local content ILS metadata Institutional repositories, ETDs, Digital Collection platforms Vendor-supplied indexes of library content E-journals, databases, e-books Full-text and metadata corresponding to e-content subscriptions Book collections beyond local library collections Includes full-text indexing to the fullest extent possible
28
Federated Search Search: Digital Collections ProQuest EBSCOhost … MLA Bibliography ABC-CLIO Search Results Real-time query and responses ILS Data
29
Discovery Interface Search: Digital Collections ProQuest EBSCOhost … MLA Bibliography ABC-CLIO Search Results Real-time query and responses ILS Data Local Index MetaSearch Engine
30
Web-scale Search Search: Digital Collections ProQuest EBSCOhost … MLA Bibliography ABC-CLIO Search Results Pre-built harvesting and indexing Consolidated Index ILS Data
31
Web-scale Search + Federated Search Search: Digital Collections ProQuest … MLA Bibliography ABC-CLIO Search Results Pre-built harvesting and indexing Consolidated Index ILS Data Fed Search Non- harvestable Resources Non- harvestable Resources
32
Next-Gen Library Catalogs Marshall Breeding Neal-Schuman Publishers March 2010 Volume 1 of The Tech Set
33
Questions / Follow-up Marshall Breeding http://www.librarytechnology.org marshall.breeding@vanderbilt.edu
Similar presentations
© 2024 SlidePlayer.com. Inc.
All rights reserved.