Presentation on theme: "Portal, Federated Search and OpenURL: Making Sense of the Technology."— Presentation transcript:
Portal, Federated Search and OpenURL: Making Sense of the Technology
Portal Definitions Gateway to resources on the Internet or Intranet Common entry point for accessing contents A customized web environment designed so individual user can personalize the content and customize the look and feel
Why not Portal If you only want to show a single content If you have static contents If you or your users don’t need to customize or personalize the contents
Portal Framework Resources Portal Local DBSubscribed DB Web ResourcesCatalogs Interface
Issues in building a portal Content Design/interface Administration: users management Project management … (next)
Issues in building a portal Technical implementation Open source, proprietary, metasearch services Authentication and authorization Applications for services Integration with other services (ILL, course management system, RSS)
MyLibrary Portal to library resources Developed to help users access library resources related to their field or research interest managing their chosen resources create personal interest resources It’s there, but not quite there yet
How libraries can utilize portals To help fulfill user information needs To provide library-related content Use of service components Use of library resources locator opac search Federated/meta search
What is Federated Search? Broadcast searching Parallel searching Metasearching Cross database searching “Google” for the library Federated searching is a single search across multiple resources. This can include the library catalog, multiple databases or the web.
How does it work? Federated search uses Z39.50, HTTP searching, XML and other technologies to search across multiple databases search engine? Each federated search program will work a little differently
Federated Search Search Federated Search tool End Results Translator Result processed Database A Database B User
What programs are available? The Library of Congress has a list of federated search applications at: http://www.loc.gov/catdir/lcpaig/portalproducts.html http://www.loc.gov/catdir/lcpaig/portalproducts.html Some of the federated search providers are: Metalib – ExLibris EnCompass Solutions – Endeavor MetaFind – Innovative Interfaces Webfeat Prism – Webfeat, Inc. Horizon Information Portal – Dynix WebFeat, MuseSearch…
Pros of Federated Searching One user interface for a search across multiple databases, Powerful for searching very specific terms Easier interface to use than some of the databases Can craft a targeted database list Ability to search multi-disciplines Allows beginning users a broad search to start
Cons of Federated Searching Could confuse users with the groupings of the result list Less sophisticated searches return whatever returns first chronologically Poor response compared with other internet search De-duplicating software is immature No controlled vocabulary search Possible license issue as it hits each resource
Finding a balance Federated search not all things to all people Does not take the place of individual databases Part of a package of services offered to users Setting users’ expectations important
Why OpenURL? Problem with non-OpenURL Source page has no real control to the link The link is more or less static The link can only have one destination Source page knows nothing about what are particularly available to user who clicked on it.
Why OpenURL? In the library world: How to find the full text given a citation? What if user found a citation he/she is not entitled to view? Which source is available to the user if multiple sources are found? What Libraries need is a smarter URL, that “understands” the context of a search (Context Sensitive URL):
Why OpenURL? OpenURL technology tries to address the following issues: Needs a mechanism to keep track of all the sources AVAILABLE, and Supplies the BEST link to users who have access rights.
What is OpenURL? Source Link Link Resolver URL Target
What is OpenURL? Source Link Link Resolver OpenURL URL Target Dynamic linking
What is OpenURL? Source Link Link Resolver OpenURL URL Target Target 2Target 1Target 3 Context sensitive linking
What is OpenURL? OpenURL is a metadata standard It makes this linking standardized and therefore open It is transported via the web through HTTP protocol, so it’s a URL Link Resolver Source Target 2Target 1Target 3
What is OpenURL? Link Resolver is the application that supports OpenURL standard It accepts the metadata from source, generates context-sensitive link based on a set of rules set up locally, and Passes the link to the target (or targets) Link Resolver Source Target 2Target 1Target 3
What is OpenURL? What OpenURL looks like: http://www.server.org/resolver?genre=arti cle&issn=02767783&title=MIS%20Quarterly &volume=19&issue=3&date=19950901&atitle =Using%20IT%20to%20reengineer%20busines s%20education BASE URL and the Reference OpenURL is “recyclable” (transferable) Some vendors provide OpenURL generator
What are needed to get OpenURL OpenURL aware services (resources that support OpenURL) Library’s catalog The Gale Group JSTOR PubMed OCLC Ovid ProQuest EBSCO Etc.
What are needed to get OpenURL Link Resolvers Article Linker/Journal Linker (Serials Solutions) Link Finder Plus (Edeavor) SFX (Ex Libris) EBSCO SmartLink (EBSCO) OpenResolver (UKOLN) TOUR, TDNet OpenURL Resolver (TDNet) WebBridge (Innovative Interfaces)
Federated Search vs OpenURL Search OpenURL search: Using a set of metadata to generate links to appropriate copies or other value added services. Federated search: Single “google”-like box or user- selected lists of databases that searches multiple databases, OPAC and the web and returns results back to the user.
Federated Search vs OpenURL Search Federated Search tool Results Translator Result processed Link resolved OpenURL linker Database A Database B Fed. Search Database C OpenURL Search
Portal products that support OpenURL Meta searching packages Rooms (SIRSI) ENCompass (Endeavor) MetaLib (ExLibris) Millennium Access Plus (Innovative Interfaces) ZPORTAL (Fretwell-Downing)
Portal products that support OpenURL Example 1:
Issues to Consider Good in citation searches -- how does it apply to other areas of information resources? Information organization -- how to avoid overwhelming your users by the links, what to include and what not to? Where to provide the OpenURL linking? In catalog, in e-resource database or as a search? OpenURL is context sensitive linking but can all databases be searched in an integrated way?
Issues to Consider (con’t) Good linking depends on how the linker is setup. Details of all holding information will help to achieve better performance Overcome the differences in linking acceptance between information providers (extended services), no standard way Local administration, on going support will be resource intensive, but could benefit users
Conclusion Interface Context Services Resources Portal HelpMeta SearchingInfo managementpresentation User accessOpenURLOther standards (z39.50) Resource managementContent management Local DBSubscribed DB Web ResourcesCatalogs
OpenURL/Federated Searching vs. portal? OpenURL and federated searching: two important components of portal User access User authentication: user access profile can be built into URL, stored in cookie or on the server. Each user doing search can have different set of resolver service that are tailored to personal/institutional needs and access rights. Single-sign-on, ideal for most of the meta searching
Resources sharing Portal itself can be OpenURL aware OpenURL refines the result of meta searching Delivery of specific and extended services Course reserves Full text ILL Catalog Reference database Subject based web OpenURL/Federated Searching vs. portal?
Our thanks to MyLibrary @ Lehigh Tim McGraw Lehigh University http://www.lehigh.edu/~tmm8/mylibrary/ MSU Extention Cindy Straub Michigan State University http://portal.msue.msu.edu/portal/
Thank you! Elizabeth Bollinger email@example.com Ranti Junus firstname.lastname@example.org Dao Rong Gong email@example.com