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Modified: 2009-12-07
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Quarterly Technical Report |
January to March 2009 |
Introduction
At the end of March 2009, there were 21 repositories within the ASDD with a
total of 26,537 dataset descriptions available for searching. However, the
Australian Antarctic Data Centre and
WALIS ASDD nodes were down at that time.
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 January, February and March 2009.
Repositories which have provided descriptions are also listed.
Achievements during past quarter
- There are more basic and less advanced searches this quarter than last
quarter.
- Overall there are less searches than last quarter.
- There are less visitors but more accesses to the ASDD this
quarter than last quarter.
- Some Z39.50 search errors may be caused by poor metadata content. Some
metadata discrepancies are highlighted in the
advanced results report.
Node managers are encouraged to review this report regularly.
-
Congratulations to:
Australian Hydrographic Office - Product Metadata,
Australian Hydrographic Office - Publication Metadata,
Australian Hydrographic Office - Source Metadata,
Bureau of Meteorology,
Geoscience Australia,
PSMA Australia Limited and
Queensland Department of Natural Resources and Water Data
for having valid ANZLIC Version 2 metadata.
- Congratulations to:
Bureau of Meteorology and
Geoscience Australia
for being available 100% of the time during this
quarter.
- The Australian Antarctic Data Centre ASDD node was unavailable for all
of this quarter.
- The WALIS nodes were not available for this quarter.
- Due to circumstances beyond Geoscience Australia's control the ASDD gateways
were unavailable at:
- 2009-03-06T21:30+11,
- 2009-03-06T22:30+11,
- 2009-03-18T16:30+11 and
- 2009-03-16T17:30+11.
This represents
4 hours of the whole quarter which is less that 0.2% of the total time.
Web Statistics for ASDD
This quarter's statistics for the ASDD are
available for the period 2009-01-01 to 2009-03-31.
A summary of this quarter's statistics follows:
| |
This Quarter |
Last Quarter |
| Spider page views
(These values are excluded from the other web statistics.) |
162,466 = 50% of all page hits. |
168,136 = 53% of all page hits. |
| Total page views
(Access of a page as a whole e.g. html): |
159,684 |
148,270 |
| Total visitors: |
8,281 |
9,581 |
| Starting day: |
1st January 2009 |
2008-10-01 |
| Ending day: |
31st March 2009 |
2008-12-31 |
| Total days covered: |
90 |
92 |
| Average page views per day: |
1,774 |
1,117 |
| Average visitors per day: |
92 |
104 |
Notes:
- There are less page views and less visitors this quarter than last quarter.
The following diagrams show the statistical trends for the last four years:
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
- 30685 searches were made through the ASDD basic gateway.
- 1584 single search terms were used.
- 29101 multiple search terms were used.
The following links provide more details on the monthly basic gateway statistics:
ASDD Advanced Gateway
- 2387 searches were made through the ASDD advanced gateway.
- 924 single search terms were used.
- 1463 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
some time during April 2009.
Note:
- The content of the ANZMETA-1.3 metadata records were validated using the
RELAXNG schema.
- 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.
- 93% of the ASDD records were available in XML format for validation.
This is less than last quarter.
- 79% of XML records that were parsed are valid. This is less
than the last quarter.
- 6 repositories have 100% valid ANZLIC Version 2 metadata records,
which is less than last quarter.
- 16 repositories are using or partially using ANZMETA-1.3.DTD or its
extension, which is less then last quarter.
- Six ASDD nodes were not available for checking.
- "Not available" means that the server did
not respond appropriately to the query at the time of investigation.
Repository Reliability
A summary of repository reliability for the period January to March 2008
is given below:
| Repository Up time |
January % |
February % |
March % |
| ACT Geographic Data Directory |
92 |
100 |
100 |
| Australian Hydrographic Office - Product Metadata |
97 |
100 |
99 |
| Australian Hydrographic Office - Service - Publication Metadata |
96 |
100 |
99 |
| Australian Hydrographic Office - Source Metadata |
97 |
100 |
99 |
| BRS and Australian Natural Resources Data Library (ANRDL) |
100 |
82 |
97 |
| Bureau of Meteorology |
100 |
100 |
100 |
| CSIRO Marine and Atmospheric Research |
99 |
100 |
99 |
| DEWHA Discover Information Geographically (DIG) |
100 |
100 |
97 |
| Geoscience Australia |
100 |
100 |
100 |
| IndexGeo Pty Ltd - Eco Companion catalogue |
90 |
100 |
100 |
| Murray-Darling Basin Authority |
99 |
99 |
100 |
| NSW Natural Resources Data Directory |
100 |
95 |
99 |
| NT Spatial Data Directory |
98 |
97 |
99 |
| Other Commonwealth Data (hosted by BRS) |
100 |
82 |
98 |
| PSMA Australia Limited |
99 |
99 |
99 |
| Qld Spatial Data (QSIC) |
100 |
100 |
99 |
| Queensland Department of Natural Resources and Water Data |
100 |
100 |
99 |
| RAN Directorate of Oceanography and Meteorology |
99 |
99 |
99 |
| South Australian Spatial Information Directory |
100 |
100 |
99 |
| Tasmanian Spatial Data Directory |
100 |
100 |
99 |
| Victorian Spatial Data Directory |
100 |
99 |
100 |
| Average |
98 |
98 |
99 |
Monthly details about the server, port, database, available records
query time and repository availability can be found at:
January
February
March
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://asdd.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 - Publication Metadata
- Australian Hydrographic Office - Source Metadata
- BRS and Australian Natural Resources Data Library (ANRDL)
- Bureau of Meteorology
- CSIRO Marine and Atmospheric Research
- DEWHA Discover Information Geographically (DIG)
- Geoscience Australia
- IndexGeo Pty Ltd - Eco Companion catalogue
- Murray-Darling Basin Authority
- NSW Natural Resources Data Directory
- NT Spatial Data Directory
- Other Commonwealth Agencies (hosted by BRS)
- PSMA Australia Limited
- Qld Spatial Data (QSIC)
- Queensland Department of Natural Resources and Water 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-Bibliographic Data
- WALIS Interragator-Environmental Impact Statements
- WALIS Interragator-Natural Resource Monitoring
- WALIS Interragator-Spatial Data
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