[OAI-general] System Architecture

Downes, Stephen Stephen.Downes@nrc-cnrc.gc.ca
Fri, 14 Feb 2003 10:29:03 -0500


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-----Original Message-----
From: Young,Jeff [mailto:jyoung@oclc.org]
Sent: Friday, February 14, 2003 11:21 AM
To: 'Downes, Stephen'; Young,Jeff; oai-general@oaisrv.nsdl.cornell.edu
Subject: RE: [OAI-general] System Architecture


Stephen,
 
Make sure you are clear about the difference between OAI data providers
(e.g. XTCat) and OAI service providers (e.g.
http://rocky.dlib.vt.edu/~etdunion/cgi-bin/index.pl
<http://rocky.dlib.vt.edu/~etdunion/cgi-bin/index.pl> .) The OAI-PMH, per
se, does not address the question of generalized searching. The forms
provided on the XTCat page ( http://alcme.oclc.org/xtcat/
<http://alcme.oclc.org/xtcat/> ) are there merely to exercise the OAI
protocol. They are not intended to be a general search mechanism. That's the
job of the OAI service providers.
I recognize that. Some URLs of OAI service providers would be useful to me.
 
While I'm writing, I would like to ask also whether there have been any
implementations of OAI for learning object metadata (such as IMS, IEEE_LOM,
CanCore, etc). The OAI harvesting model is an excellent means of harvesting
learning object meatada for search & use by individuals or learning
management systems. If implementations exist, it would be exceptionally
useful to me.
----------------------------------------------------------------------------
- 
Stephen Downes ~ Senior Researcher ~ National Research Council 
Moncton, New Brunswick, Canada 
http://www.downes.ca <http://www.downes.ca/>    stephen@downes.ca   
stephen.downes@nrc.ca   http://www.iit.nrc.ca/e-learning.html
<http://www.iit.nrc.ca/e-learning.html>  
Subscribe to my free daily newsletter featuring news and articles 
about online knowledge, learning, community 
http://www.downes.ca/cgi-bin/website/subscribe.cgi
<http://www.downes.ca/cgi-bin/website/subscribe.cgi>  
or read it at http://www.downes.ca/news/OLDaily.htm
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  <DIV align=3Dleft class=3DOutlookMessageHeader dir=3Dltr><FONT =
face=3DTahoma=20
  size=3D2>-----Original Message-----<BR><B>From:</B> Young,Jeff=20
  [mailto:jyoung@oclc.org]<BR><B>Sent:</B> Friday, February 14, 2003 =
11:21=20
  AM<BR><B>To:</B> 'Downes, Stephen'; Young,Jeff;=20
  oai-general@oaisrv.nsdl.cornell.edu<BR><B>Subject:</B> RE: =
[OAI-general]=20
  System Architecture<BR><BR></DIV></FONT>
  <DIV><FONT color=3D#0000ff size=3D2><SPAN=20
  class=3D189110015-14022003>Stephen,</SPAN></FONT></DIV>
  <DIV><FONT color=3D#0000ff size=3D2><SPAN=20
  class=3D189110015-14022003></SPAN></FONT>&nbsp;</DIV>
  <DIV><FONT color=3D#0000ff size=3D2><SPAN =
class=3D189110015-14022003>Make sure you=20
  are clear about the difference between&nbsp;OAI data providers (e.g. =
XTCat)=20
  and OAI service providers (e.g. <A=20
  =
href=3D"http://rocky.dlib.vt.edu/~etdunion/cgi-bin/index.pl">http://rock=
y.dlib.vt.edu/~etdunion/cgi-bin/index.pl</A>.)&nbsp;The=20
  OAI-PMH, per se, does not address the question of generalized =
searching. The=20
  forms provided on the XTCat page (<A=20
  =
href=3D"http://alcme.oclc.org/xtcat/">http://alcme.oclc.org/xtcat/</A>) =
are=20
  there merely to exercise the OAI protocol. They are not intended to =
be a=20
  general search mechanism. That's the job of the OAI service=20
  providers.</SPAN></FONT></DIV></BLOCKQUOTE>
<DIV><SPAN class=3D189110015-14022003></SPAN><SPAN =
class=3D276202615-14022003><FONT=20
color=3D#0000ff face=3DArial size=3D2>I recognize that. Some URLs of =
OAI service=20
providers would be useful to me.</FONT></SPAN></DIV>
<DIV><SPAN class=3D276202615-14022003></SPAN>&nbsp;</DIV>
<DIV><FONT color=3D#0000ff face=3DArial size=3D2><SPAN =
class=3D276202615-14022003>While=20
I'm writing, I would like to ask also whether there have been any=20
implementations of OAI for learning object metadata (such as IMS, =
IEEE_LOM,=20
CanCore, etc). The OAI harvesting model is an excellent means of =
harvesting=20
learning object meatada for search &amp; use by individuals or learning =

management systems. If implementations exist, it would be exceptionally =
useful=20
to me.</SPAN></FONT></DIV>
<DIV><SPAN class=3D276202615-14022003><FONT color=3D#0000ff =
face=3DArial size=3D2>
<P><FONT face=3D"Courier New"=20
size=3D2>---------------------------------------------------------------=
--------------</FONT>=20
<BR><FONT face=3D"Courier New" size=3D2>Stephen Downes ~ Senior =
Researcher ~=20
National Research Council</FONT> <BR><FONT face=3D"Courier New" =
size=3D2>Moncton,=20
New Brunswick, Canada</FONT> </P>
<P><FONT face=3D"Courier New" size=3D2><A =
href=3D"http://www.downes.ca/"=20
target=3D_blank>http://www.downes.ca</A>&nbsp;&nbsp; =
stephen@downes.ca&nbsp;&nbsp;=20
</FONT><BR><FONT face=3D"Courier New" =
size=3D2>stephen.downes@nrc.ca&nbsp;&nbsp; <A=20
href=3D"http://www.iit.nrc.ca/e-learning.html"=20
target=3D_blank>http://www.iit.nrc.ca/e-learning.html</A></FONT> </P>
<P><FONT face=3D"Courier New" size=3D2>Subscribe to my free daily =
newsletter=20
featuring news and articles </FONT><BR><FONT face=3D"Courier New" =
size=3D2>about=20
online knowledge, learning, community</FONT> <BR><FONT face=3D"Courier =
New"=20
size=3D2><A href=3D"http://www.downes.ca/cgi-bin/website/subscribe.cgi" =

target=3D_blank>http://www.downes.ca/cgi-bin/website/subscribe.cgi</A>=20
</FONT><BR><FONT face=3D"Courier New" size=3D2>or read it at <A=20
href=3D"http://www.downes.ca/news/OLDaily.htm"=20
target=3D_blank>http://www.downes.ca/news/OLDaily.htm</A></FONT> =
<BR><FONT=20
face=3D"Courier New"=20
size=3D2>---------------------------------------------------------------=
--------------</FONT>=20
</P></FONT></SPAN>&nbsp;</DIV></BODY></HTML>

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