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Christina's LIS Rant
Wednesday, March 16, 2005
  CIL 2005: Web Services


Web Services: An Overview for Librarians (once again, Frank Cervone)
Architecture for application-oriented services over the web:
Technologies
Standards
Business Models
Defined as
Self-contained
Self-describing
Modular
Published, located, invoked across the web

Runs on XML and http, implemented in layers
UDDI
Service discovery
WSDL
Service description
SOAP
XML-RPC
Messaging

HTTP
Services transport

SRU/SRW
SRW (Search and Retrieve Web Service) – uses SOAP, application to application, like SFX and the OPAC talking
SRU (Search and Retrieve URL Service) – uses REST, parameters passed through the URL itself, kind of like Open URL to an extent

3 basic operations
Explain – what the database contains, what fields can be searched, what metadata schemes are supported
Scan
SearchRetrieve
All of this allows for dynamic discovery of services, allows for flexibility, reliability


Introduction to Amazon E-Commerce Services: Applications for Libraries
Larry Mrazek (http://www.lcm-res.com/)

Online searching for books in the OPAC you lose serendipity. He then started to use Amazon because it has reviews and recommendations, readers advisory, almost, and then he finds a copy to read in the OPAC.

Yes, ILS systems now have modules you can purchase for this, but you can add in Amazon’s stuff for free.
Library uses:
Use Amazon for ILL verification? – don’t we already?
Friends of the Library – can be an associate and can get donations for purchases from link-throughs from the library web site
Book cover images
Recommendations

Using the web services you have access to more indexes than you do via Amazon’s interface.

Problems:
One request per second per IP address
Privacy
No contract – can’t say it will exist and be free tomorrow

Getting Started
1) get a developer token (free, like API key for Google)
2) download and read developers guide, code samples
3) locate “browse mode” subject headings
4) go to the scratch pad (it automatically creates the XML for you)
5) fill out all the stuff
6) hit the button, copy url (preview first)
7) embed the information into your web page (you could write a script that does this once per day)








 
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This is my blog on library and information science. I'm into Sci/Tech libraries, special libraries, personal information management, sci/tech scholarly comms.... My name is Christina Pikas and I'm a librarian in a physics, astronomy, math, computer science, and engineering library. I'm also a doctoral student at Maryland. Any opinions expressed here are strictly my own and do not necessarily reflect those of my employer or CLIS. You may reach me via e-mail at cpikas {at} gmail {dot} com.

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Christina Kirk Pikas

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