W3C home > Mailing lists > Public > public-lod@w3.org > April 2010

Re: What would you build with a web of data?

From: Olaf Hartig <hartig@informatik.hu-berlin.de>
Date: Mon, 12 Apr 2010 20:15:53 +0200
To: "public-lod" <public-lod@w3.org>
Message-Id: <201004122015.55049.hartig@informatik.hu-berlin.de>
On Monday 12 April 2010 16:14:56 Georgi Kobilarov wrote:
> [...]
> So after your work on SQUIN, what is your conclusion? Does the distributed
> querying approach work well enough that you can imagine a developer
>  building an application/website using it?

First of all, the query approach implemented by SQUIN and the underlying 
Semantic Web Client library (SWClLib) is very different from distributed query 
processing. I call this new approach link traversal based query execution.

Re your question: building an application based on this query approach is very 
easy, in particular, if you use a tool like SQUIN that can be accessed as if 
it were a SPARQL endpoint. What might be a bit tricky for beginners is the 
development of the queries.

We implemented two real LD based application using SQUIN:
* http://researchersmap.informatik.hu-berlin.de/
* http://linkeddata.informatik.hu-berlin.de/altmed/
These applications, indeed, use Linked Data from multiple sources.

> An application for users who have no appreciation for the underlying
> technology at all and hence no tolerance for hickups cause by it?

That's a different story. SQUIN and SWClLib are prototypes that don't work very 
efficiently and that still lack several features. Hence, I wouldn't recommend 
them for real applications that require UI-friendly response times, yet.
However, the query approach in general, implemented with suitable caching 
mechanisms, can serve specific LD based applications quite well.

Received on Monday, 12 April 2010 18:16:30 UTC

This archive was generated by hypermail 2.3.1 : Wednesday, 7 January 2015 15:16:05 UTC