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revision 2407 by marco.merot@gmail.com, Thu Oct 24 14:39:23 2013 UTC revision 2408 by marco.merot@gmail.com, Thu Jan 30 13:35:23 2014 UTC
# Line 181  Line 181 
181    <p>    <p>
182    In the next subsection a possible tagging solution, based upon the existing    In the next subsection a possible tagging solution, based upon the existing
183    <i>ContentLevel</i> element of VOResource, but requiring a small change    <i>ContentLevel</i> element of VOResource, but requiring a small change
184    to it is presented. The subsequent subsection describes the idea of a    to, it is presented. The subsequent subsection describes the idea of a
185    curated registry for educational resources and the reasons for it to exist.    curated registry for educational resources and the reasons for it to exist.
186    </p>    </p>
187  </div> <!-- subsection eduvspro -->  </div> <!-- subsection eduvspro -->
# Line 214  Line 214 
214    </ul>    </ul>
215    possible values may lead to both a better description of their resources    possible values may lead to both a better description of their resources
216    by data providers and a suitable tagging solution for a first filtering on    by data providers and a suitable tagging solution for a first filtering on
217    differently targeted resources at client level.    differently targeted resources at client level. Of course, the chance to
218      add and <i>Educational</i> value option to this shrinked list, or even
219      substitute it to the <i>General</i> one, would be a valuable change.
220    </p>    </p>
221    <p>    <p>
222    This change in the already existing standard will require only    This change in the already existing standard will require only
223    a small effort to update already registered resources because 97% of    a small effort to update already registered resources because nearly 97% of
224    them currently have ContentLevel set to <i>research</i>, 2% of them have    them currently have ContentLevel set to <i>research</i>, about 2% of them have
225    no ContentLevel defined and only the remaining 1% have a different value    no ContentLevel defined at all and only the remaining (about 1%) have a different value
226    (or set of values) set for this element (Appendix A details better these    (or set of values) set for this element (Appendix A details better these
227    figures).    figures).
228    </p>    </p>
# Line 233  Line 235 
235    a curated registry for educational VO resources will be useful for    a curated registry for educational VO resources will be useful for
236    educators to easily access the wanted data and services. A good example    educators to easily access the wanted data and services. A good example
237    for this is the educational version of the Aladin sky atlas, that has a    for this is the educational version of the Aladin sky atlas, that has a
238    built in curated set of resources suitable for educational level    built in, curated set of resources suitable for educational level
239    tutorials.    tutorials.
240    </p>    </p>
241    <p>    <p>
# Line 244  Line 246 
246    <p>    <p>
247    If such a registry were a standard local registry (<cite>std:RI1</cite>)    If such a registry were a standard local registry (<cite>std:RI1</cite>)
248    its resources would be harvested by the full registries: this means    its resources would be harvested by the full registries: this means
249    that any educational dedicated resource will go up to the full VO    that any educational dedicated resource will go into the full VO
250    set of resources, which is what we don't want to happen to keep the    set of resources, which is what we don't want to happen to keep the
251    <i>professional</i> side to be robust.    <i>professional</i> side robust.
252    </p>    </p>
253    <p>    <p>
254    If it were to be a full registry, it will harvest itself all the existing    If it were to be a full registry, it will harvest itself all the existing
# Line 373  Line 375 
375  <h2><a id="clcurrval">ContentLevel values summary</a></h2>  <h2><a id="clcurrval">ContentLevel values summary</a></h2>
376  <p>  <p>
377  This appendix reports some statistics on the usage of the ContentLevel  This appendix reports some statistics on the usage of the ContentLevel
378  element in <cite>std:VOR</cite> as of 2013-10-24, taken from the  element in <cite>std:VOR</cite> as of 2014-01-30, taken from the
379  GAVO RegTAP endpoint  GAVO RegTAP endpoint http://dc.g-vo.org/tap .
380  http://dc.zah.uni-heidelberg.de/__system__/tap/run/tap .  There are 14392 useful resources (excluding authorities, standards and
381  There are 14044 useful resources (excluding authorities, standards and  similar) that expose 26 different values as their ContentLevel.
 similar) that expose 27 different values as their ContentLevel.  
382  In the following table these values are reported in order of count.  In the following table these values are reported in order of count.
383  </p>  </p>
384  <p>  <p>
# Line 388  Line 389 
389  </tr>  </tr>
390  </thead>  </thead>
391  <tbody>  <tbody>
392  <tr class="even">  <tr>
393   <td>13623</td> <td>research</td>   <td>13937</td> <td>research</td>
394  </tr>  </tr>
395  <tr>  <tr>
396   <td>279</td> <td>&nbsp;</td>   <td>290</td> <td>&nbsp;</td>
397  </tr>  </tr>
398  <tr class="even">  <tr>
399   <td>31</td> <td>general#university#research#amateur</td>   <td>41</td> <td>university#research</td>
400  </tr>  </tr>
401  <tr>  <tr>
402   <td>29</td> <td>university#research</td>   <td>40</td> <td>general#university#research#amateur</td>
403  </tr>  </tr>
404  <tr class="even">  <tr>
405   <td>24</td> <td>university</td>   <td>24</td> <td>university</td>
406  </tr>  </tr>
407  <tr>  <tr>
408   <td>14</td> <td>university#research#amateur</td>   <td>14</td> <td>university#research#amateur</td>
409  </tr>  </tr>
410  <tr class="even">  <tr>
411   <td>6</td> <td>general</td>   <td>7</td> <td>general</td>
412  </tr>  </tr>
413  <tr>  <tr>
414   <td>5</td> <td>research#general</td>   <td>5</td> <td>research#general</td>
415  </tr>  </tr>
416  <tr class="even">  <tr>
417   <td>4</td> <td>general#research</td>   <td>4</td> <td>general#research</td>
418  </tr>  </tr>
419  <tr>  <tr>
420   <td>3</td> <td>secondary education#community college#university#research#amateur</td>   <td>3</td> <td>secondary education#community college#university#research#amateur</td>
421  </tr>  </tr>
422  <tr class="even">  <tr>
423     <td>3</td> <td>research#university#community college</td>
424    </tr>
425    <tr>
426   <td>3</td> <td>elementary education#middle school education#secondary education</td>   <td>3</td> <td>elementary education#middle school education#secondary education</td>
427  </tr>  </tr>
428  <tr>  <tr>
429   <td>3</td> <td>research#university#community college</td>   <td>3</td> <td>general#university#research</td>
430  </tr>  </tr>
431  <tr class="even">  <tr>
432   <td>2</td> <td>general#university#research</td>   <td>2</td> <td>research#university</td>
433  </tr>  </tr>
434  <tr>  <tr>
435   <td>2</td> <td>general#elementary education#middle school education#secondary education#community college#university#research#amateur#informal education</td>   <td>2</td> <td>research#amateur#university#community college</td>
436  </tr>  </tr>
437  <tr class="even">  <tr>
438   <td>2</td> <td>general#informal education</td>   <td>2</td> <td>general#informal education</td>
439  </tr>  </tr>
440  <tr>  <tr>
441   <td>2</td> <td>research#amateur#university#community college</td>   <td>2</td> <td>general#elementary education#middle school education#secondary education#community college#university#research#amateur#informal education</td>
442  </tr>  </tr>
443  <tr class="even">  <tr>
444   <td>2</td> <td>research#university</td>   <td>1</td> <td>university#community college#research</td>
445  </tr>  </tr>
446  <tr>  <tr>
447   <td>1</td> <td>general#university#research#informal education</td>   <td>1</td> <td>general#university#research#amateur#informal education</td>
448  </tr>  </tr>
449  <tr class="even">  <tr>
450   <td>1</td> <td>research#university#amateur</td>   <td>1</td> <td>elementary education#middle school education#secondary education#community college#university#research</td>
451    </tr>
452    <tr>
453     <td>1</td> <td>general#secondary education#university#research</td>
454  </tr>  </tr>
455  <tr>  <tr>
456   <td>1</td> <td>university#research#general#informal education</td>   <td>1</td> <td>university#research#general#informal education</td>
457  </tr>  </tr>
458  <tr class="even">  <tr>
459   <td>1</td> <td>general#secondary education#university#research</td>   <td>1</td> <td>research#university#amateur</td>
460  </tr>  </tr>
461  <tr>  <tr>
462   <td>1</td> <td>elementary education#middle school education#secondary education#community college#university#research#amateur</td>   <td>1</td> <td>elementary education#middle school education#secondary education#community college#university#research#amateur</td>
463  </tr>  </tr>
464  <tr class="even">  <tr>
465   <td>1</td> <td>elementary education#middle school education#secondary education#community college#university#research#amateur#informal education</td>   <td>1</td> <td>elementary education#middle school education#secondary education#community college#university#research#amateur#informal education</td>
466  </tr>  </tr>
467  <tr>  <tr>
468   <td>1</td> <td>university#research#amateur#informal education</td>   <td>1</td> <td>university#research#amateur#informal education</td>
469  </tr>  </tr>
 <tr class="even">  
  <td>1</td> <td>university#community college#research</td>  
 </tr>  
470  <tr>  <tr>
471   <td>1</td> <td>general#university#research#amateur#informal education</td>   <td>1</td> <td>general#university#research#informal education</td>
 </tr>  
 <tr class="even">  
  <td>1</td> <td>elementary education#middle school education#secondary education#community college#university#research</td>  
472  </tr>  </tr>
473  </tbody>  </tbody>
474  </table>  </table>
# Line 484  Line 485 
485    res_type != 'vstd:servicestandard' and    res_type != 'vstd:servicestandard' and
486    res_type != 'vg:authority' and    res_type != 'vg:authority' and
487    res_type != 'vstd:standard' and    res_type != 'vstd:standard' and
488      res_type != 'va:application' and
489    res_type != 'vr:organization'    res_type != 'vr:organization'
490  GROUP BY content_level  GROUP BY content_level
491  ORDER BY cnt DESC  ORDER BY cnt DESC
492  </pre>  </pre>
493  The table shows that only about 1% of the ContentLevel values use  The table shows that only about 1% of the ContentLevel values use
494  something different and more complex than <i>research</i>, when  something different and more complex than <i>research</i>, when
495  the element is not empty. Morever, of this 1% (142 resources), 56  the element is not empty. Morever, of this 1% (165 resources),
496  include the <i>general</i> value (roughly 40% of them), 27 (19%)  61 include the <i>general</i> value (roughly 37% of them),
497  state that are only devoted to some <i>educational</i> level, 36 (25%)  29 (17%) state that are devoted to some <i>education</i> level only,
498  can work both in <i>research</i> and <i>education</i> and the  while 148 (90%) state that are also devoted to some <i>education</i> level (up to <i>university</i>).
 remaining 23 (16%) report <i>research</i>, <i>amateur</i> and some  
 level of <i>education</i> alltogether.  
499  </p>  </p>
500  </div> <!-- end clcurrval-->  </div> <!-- end clcurrval-->
501  </div> <!-- end appendices -->  </div> <!-- end appendices -->
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