Archive for the ‘OMBase’ Category

Submitting content to OMBase and logging

Monday, March 24th, 2008

While I was reading up on the REST papers in my last post, I stunbled upon the following best practice for making sure that material is only submitted once to a RESTful application. This is something we should adopt in OMBase as well, just to be safe.

Another thing that we should think of in this  arena is to enable some form of RESTful logging facility, so that users can find out what happened to the content. The technology that seems best suited for that seems to be RSS or Atom Syndication (probably the latter). The nice thing is that we could log all the changes to any URI we use in the system. I am not sure under which URL we would address the log, one idea is to just make use of the the mime type application/atom+xml just as for the xhtml presentation as suggested in my last post that would at least alleviate the choice of URL.

Posted by kohlhase in kohlhase, MKM, OMBase, OMDoc, semantic documents | 2 Comments »

Integrating Presentation into OMBase

Monday, March 24th, 2008

I have just been reading up on REST again, since I found a very palatable pair of articles (REST intro, and  practices). This got me thinking about the state of OMBase, and the integration of our presentation pipeline into the OMBase interface. It is RESTful, since we have MMT addressing via URIs implemented. You just use a GET to retrieve them.

What I have talked with Florian about, but maybe not with the OMBase team, is how to integrate presentation. That should be very simple from the interface point of view: we just take the same URLs, but a different HTTP header.

GET /arith1/lcm
Host: cds.omdoc.org
Accept: application/omdoc+xml

gives you the OMDoc file and

GET /arith1/lcm
Host: cds.omdoc.org
Accept: application/xhtml+xml

gives you the presented version (with the standard options). Now, we have written a paper about presentation and submitted it to MKM and Christine has spent a lot of ingenuity on defining user options to the presentation process.This should be easy to integrate with the URI query interface:

GET /arith1/lcm?ext=foo.ntn∫=lang:ntn;style:physics
Host: cds.omdoc.org
Accept: application/xhtml+xml

That should do the trick.

Posted by kohlhase in kohlhase, mathml, OMBase, OMDoc, OpenMath, semantic documents | 2 Comments »