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Modified: 2005-01-06
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Quarterly Technical Report |
July to September 2004 |
Introduction
At the end of September 2004, there were 25 repositories within the ASDD with a
total of 38,676 dataset descriptions available for searching.
Statistics are provided for the ASDD covering:
- web access statistics,
- gateway statistics,
- number of records at each repository,
- reliability of repository,
for the months of July, August and September 2004.
Repositories which have provided descriptions are also listed.
Achievements during past quarter
- Except for one node all of the ASDD nodes appear to be responding
properly to the ASDD advanced search queries except in the case of
badly formed metadata records.
- The ACT Geographic Data Directory
node replaced the "ACT Spatial Data Directory" node. This has fixed problems
with the metadata content at the ACT node.
- The RAN Directorate of Oceanography
and Meteorology node
replaced the "Australian Oceanographic Data Centre" node.
This has fixed Z39.50 query problems with the replaced node.
- The "BRS and Australian Natural Resources Data Library (ANRDL) -
temporary" node has been completely replaced by the
BRS and Australian Natural
Resources Data Library (ANRDL) node.
- The Qld Spatial Data (QSIIS)
node was off line for a while as they were
configuring their Isite2 software.
- The
ASDD basic metadata search interface
was changed to *not* include the select list of ASDD nodes to make it more
user friendly.
- The "Murray-Darling Basin Commission Documents" node is still off line
while it is changing Internet service providers.
- The advanced search interface was used more often this quarter than the
previous quarter.
- There are more visitors and less accesses to the ASDD this quarter than
last quarter. However, the new ZAP gateways produce less pages than the
previously used Metastar gateway software which could account for the
reduction in page views. (See comments below.)
- The reliability of some of the ASDD nodes appears to have improved. This
may be due to the new ZAP gateway software used to access the ASDD nodes.
- Note:It was recently found that the node reliability was being
accumulated over the last three months. This is why the nodes appear to be
more reliable. This problem has been fixed and will be reflected in October's
node status results.
Web Statistics for ASDD
This quarter's statistics for the ASDD are
available for the period 2004-07-01 to 2004-09-30.
A summary of those statistics for this period follows:
| |
This Quarter |
Last Quarter |
| Total page views
(Access of a page as a whole e.g. html): |
69,640 |
81,168 |
| Total visitors: |
4,466 |
4,346 |
| Starting day: |
1st July 2004 |
2004-04-01 |
| Ending day: |
30th September 2004 |
2004-06-30 |
| Total days covered: |
92 |
91 |
| Average page views per day: |
756 |
891 |
| Average visitors per day: |
96 |
89 |
Notes:
- There are less page views this quarter.
- There are more visitors than the previous quarter.
- The less number of page views may be attributed to the new gateways. The
Metastar gateways showed progress pages every 4 seconds during a search which,
may last as long as 60 seconds
whereas, the ZAP gateways show the results in one go. Hence, less pages are
generated.
The following diagrams show the statistical trends for the last 11 quarters:
More statistical details are available for:
Gateway Usage
The following statistics are a summary of the ASDD basic and ASDD advanced
gateways:
ASDD Basic Gateway
- 3643 searches were made through the ASDD basic gateway.
- 2273 single search terms were used.
- 1370 multiple search terms were used.
The following links provide more details on the monthly basic gateway statistics:
ASDD Advanced Gateway
- 1306 searches were made through the ASDD advanced gateway.
- 838 single search terms were used.
- 468 multiple search terms were used.
The following links provide more details on the monthly advanced gateway statistics:
Repository Records
The following table lists the repositories, the DTD used, the number
of records parsed per repository and the number of XML records that validated
sometime during October 2004.
Note:
- These results take a long time to generate and may show different numbers
to those of the monthly accesses. This could be due to nodes adding
metadata to their repositories, some repositories not properly responding to
the Z39.50 queries or not having records available in XML format.
- 86% of the ASDD records were available in XML format for validation.
This is less than last quarter.
- 96% of XML records that were parsed are valid.
- 12 repositories have 100% valid records, which is the same last quarter.
- 15 repositories are using or partially using ANZMETA-1.3.DTD or it's
extension, which is more than the last quarter.
- One repository is referencing a local copy of their DTD in their XML records
and hence they did not validate.
- Some nodes just need to convert their & to the entity character reference
equivalents.
- "Not available" means that the server did
not respond appropriately to the query at the time of investigation.
- "None" means that no DTD was provided in the XML records or no
XML records were available. This is not a Z39.50 problem it is a processing problem.
| Repository |
Number of records available |
Number of records parsed |
Records that validate |
ANZMETA DTD |
Comments |
| ACT Geographic Data Directory |
173 |
173 |
173 |
1.3 |
|
| Australian Antarctic Data Centre |
1747 |
0 |
Not available |
Not available |
Inter-operable problems |
| Australian Hydrographic Office - Product Metadata |
1117 |
1117 |
1117 |
1.3 |
|
| Australian Hydrographic Office - Source Metadata |
4985 |
4985 |
4913 |
1.3 |
Need to replace & with entity reference. |
| BRS and Australian Natural Resources Data Library (ANRDL) |
37 |
37 |
35 |
1.3 |
Need to replace & with entity reference. |
| Bureau of Meteorology |
1 |
1 |
1 |
1.3 |
|
| CSIRO Marine Research |
1568 |
2 |
0 |
Not available |
No XML records available |
| DEH Environmental Data Directory (Green Pages) |
199 |
199 |
193 |
1.2 |
Need to validate XML records. |
| Geoscience Australia |
692 |
692 |
692 |
1.3 |
|
| IndexGeo Pty Ltd - Eco Companion catalogue |
11 |
11 |
11 |
1.3 and -//IndexGeo//DTD ANZMETA Resource 1.1//EN |
|
| National Oceans Office |
40 |
40 |
0 |
Not available |
No XML records available |
| NSW Natural Resources Data Directory |
5055 |
5055 |
5055 |
1.3 extension -//NSW NRIMS//DTD ANZMETA NSW NRIMS Page 1 v1.0//EN |
|
| NT Spatial Data Directory |
0 |
Not available |
Not available |
Inter-operable issues |
| Other Commonwealth Data (hosted by BRS) |
59 |
59 |
59 |
1.3 and 1.1 |
|
| Qld Spatial Data (QSIIS) |
1705 |
1705 |
338 |
1.3, -//ANZLIC//DTD QSIIS 1.3//EN and -//QSIIS//DTD QSIIS 1.3//EN |
Need to validate XML records. |
| Queensland Department of Natural Resources and Mines Spatial Data |
8424 |
8424 |
8424 |
1.3 and -//QSIIS//DTD QSIIS 1.3//EN |
|
| RAN Directorate of Oceanography and Meteorology |
10 |
10 |
0 |
Reference to SYSTEM DTD |
Change metadata records to properly reference ANZMETA-1.3.dtd |
| South Australian Spatial Information Directory |
865 |
865 |
864 |
1.3, 1.2 and 1.1 |
Validate records and convert all to ANZMETA-1.3.DTD |
| Tasmanian Spatial Data Directory |
236 |
236 |
218 |
1.1 |
Validate records and convert to ANZMETA-1.3.DTD |
| Victorian Spatial Data Directory |
624 |
624 |
619 |
1.3 |
Validate records. |
| WALIS Interragator-Aerial Photography |
7259 |
7258 |
7258 |
1.1 |
One record was not an XML record. Convert to ANZMETA-1.3.DTD |
| WALIS Interragator-Bibliographic Data |
1006 |
1005 |
1005 |
1.1 |
One record was not an XML record. Convert to ANZMETA-1.3.DTD.
Some records weren't processed because the GEP was too large. |
| WALIS Interragator-Environmental Impact Statements |
835 |
835 |
835 |
1.3 |
|
| WALIS Interragator-Natural Resource Monitoring |
71 |
71 |
71 |
1.1 |
Convert to ANZMETA-1.3.DTD. |
| WALIS Interragator-Spatial Data |
1277 |
1236 |
1230 |
1.3 and 1.1 |
Convert all to ANZMETA-1.3.DTD. Some records weren't
processed because the GEP was too large. |
| TOTAL |
37996 |
34640 |
33111 |
- |
|
Repository Reliability
A summary of repository reliability for the period July to September 2004
is given below:
| Repository Up time |
July % |
August % |
September % |
| ACT Geographic Data Directory |
99 |
99 |
99 |
| Australian Antarctic Data Centre |
98 |
97 |
96 |
| Australian Hydrographic Office - Product Metadata |
99 |
98 |
99 |
| Australian Hydrographic Office - Source Metadata |
99 |
98 |
99 |
| BRS and Australian Natural Resources Data Library (ANRDL) |
99 |
99 |
99 |
| Bureau of Meteorology |
99 |
99 |
99 |
| CSIRO Marine Research |
99 |
99 |
99 |
| DEH Environmental Data Directory (Green Pages) |
99 |
99 |
99 |
| Geoscience Australia |
99 |
99 |
99 |
| IndexGeo Pty Ltd - Eco Companion catalogue |
99 |
99 |
99 |
| National Oceans Office |
99 |
99 |
99 |
| NSW Natural Resources Data Directory |
97 |
98 |
98 |
| NT Spatial Data Directory |
Not available |
Not available |
Not available |
| Other Commonwealth Data (hosted by BRS) |
99 |
99 |
95 |
| Qld Spatial Data (QSIIS) |
Not available |
Not available |
99 |
| Queensland Department of Natural Resources and Mines Spatial Data |
99 |
99 |
67 |
| RAN Directorate of Oceanography and Meteorology |
99 |
97 |
45 |
| South Australian Spatial Information Directory |
99 |
99 |
99 |
| Tasmanian Spatial Data Directory |
99 |
97 |
89 |
| Victorian Spatial Data Directory |
99 |
97 |
99 |
| WALIS Interragator-Aerial Photography |
99 |
99 |
99 |
| WALIS Interragator-Bibliographic |
99 |
99 |
99 |
| WALIS Interragator-Environmental Impact Statements |
99 |
99 |
99 |
| WALIS Interragator-Natural Resource Monitoring |
99 |
99 |
99 |
| WALIS Interragator-Spatial Data |
99 |
99 |
99 |
| Average |
91 |
91 |
93 |
Monthly details about the server, port, database, available records
query time and repository availability can be found at:
July
August
September
Repository managers are automatically notified by email if a server goes
down for a period longer than four hours.
Repository descriptions
ASDD repository descriptions
http://www.ga.gov.au/asdd/tech/node/
It is the responsibility of each repository manager to utilise the online
document management application to describe their repository and update
the repository description whenever they choose.
The following ASDD repositories are briefly described and include
references to further information ...
- ACT Geographic Data Directory
- Australian Antarctic Data Centre
- Australian Hydrographic Office - Product Metadata
- Australian Hydrographic Office - Source Metadata
- BRS and Australian Natural Resources Data Library (ANRDL)
- Bureau of Meteorology
- CSIRO Marine Research
- DEH Environmental Data Directory (Green Pages)
- Geoscience Australia
- IndexGeo Pty Ltd - Eco Companion catalogue
- National Oceans Office
- NSW Natural Resources Data Directory
- NT Spatial Data Directory
- Other Commonwealth Agencies (hosted by BRS)
- Qld Spatial Data (QSIIS)
- Queensland Department of Natural Resources and Mines Spatial Data
- RAN Directorate of Oceanography and Meteorology
- South Australian Spatial Information Directory
- Tasmanian Spatial Data Directory
- Victorian Spatial Data Directory
- WALIS Interragator-Aerial photography
- WALIS Interragator-Environmental Impact Statements
- WALIS Interragator-Bibliographic Data
- WALIS Interragator-Natural Resource Monitoring
- WALIS Interragator-Spatial Data
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