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Modified: 2005-10-11
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Quarterly Technical Report |
July to September 2005 |
Introduction
At the end of September 2005, there were 25 repositories within the ASDD with a
total of 39,752 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 2005.
Repositories which have provided descriptions are also listed.
Achievements during past quarter
- The ASDD Gateways were not available and couldn't connect to most of the
ASDD nodes at around 2:30 pm on 22nd July 2005. This was caused by
Geoscience Australia's Internet Service Provider having an internet connection
problem. This would indicate that most of the ASDD nodes were down and hence the
reliability results for July were affected. The reliability reports have been
adjusted to correct this problem caused by the outage.
- The Tasmanian Spatial Data Directory was not responding properly to some
Z39.50 display commands but this problem was fixed in September 2005.
- Except for the NT Spatial Data Directory 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.
- There are more basic and less advanced searches this quarter than last
quarter.
- There are the same number of visitors and 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.
- Congratulations to;
Bureau of Meteorology,
CSIRO Marine Research,
Geoscience Australia,
National Oceans Office,
South Australian Spatial Information Directory and
Tasmanian Spatial Data Directory
for being available all of the time.
-
Congratulations to;
Bureau of Meteorology,
Geoscience Australia and
Queensland Department of Natural Resources and Mines Spatial Data,
for having 100% valid ANZLIC Version 2 metadata.
Web Statistics for ASDD
This quarter's statistics for the ASDD are
available for the period 2005-07-01 to 2005-09-30.
A summary of this quarter's statistics follows:
| |
This Quarter |
Last Quarter |
| Spider page views
(These values are excluded from the other web statistics.) |
62,448 = 43% of all page hits |
58,396 = 45% of all page hits |
| Total page views
(Access of a page as a whole e.g. html): |
81,480 |
72,127 |
| Total visitors: |
6,834 |
6,834 |
| Starting day: |
1st July 2005 |
2005-04-01 |
| Ending day: |
30th September 2005 |
2005-06-30 |
| Total days covered: |
92 |
91 |
| Average page views per day: |
886 |
792 |
| Average visitors per day: |
74 |
75 |
Notes:
- There are more page views and the same number of visitors this quarter.
The following diagrams show the statistical trends for the last 15 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
- 3034 searches were made through the ASDD basic gateway.
- 1546 single search terms were used.
- 1488 multiple search terms were used.
The following links provide more details on the monthly basic gateway statistics:
ASDD Advanced Gateway
- 2103 searches were made through the ASDD advanced gateway.
- 1187 single search terms were used.
- 916 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 October 2005.
Note:
- The content of the ANZMETA-1.3 metadata records were validated using the
RELAX NG 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.
- 95% of the ASDD records were available in XML format for validation.
This is more than last quarter.
- 54% of XML records that were parsed are valid. This is more than
last quarter.
- 7 repositories have 100% valid records, which is more than last quarter.
- 20 repositories are using or partially using ANZMETA-1.3.DTD or it's
extension, which is more than last quarter.
- "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 July to September 2005
is given below:
| Repository Up time |
July % |
August % |
September % |
| ACT Geographic Data Directory |
98 |
100 |
99 |
| Australian Antarctic Data Centre |
99 |
99 |
97 |
| Australian Hydrographic Office - Product Metadata |
99 |
99 |
96 |
| Australian Hydrographic Office - Source Metadata |
99 |
100 |
96 |
| BRS and Australian Natural Resources Data Library (ANRDL) |
98 |
100 |
100 |
| Bureau of Meteorology |
100 |
100 |
100 |
| CSIRO Marine Research |
100 |
100 |
100 |
| DEH Environmental Data Directory (Green Pages) |
98 |
100 |
100 |
| Geoscience Australia |
100 |
100 |
100 |
| IndexGeo Pty Ltd - Eco Companion catalogue |
98 |
100 |
99 |
| National Oceans Office |
100 |
100 |
100 |
| NSW Natural Resources Data Directory |
99 |
100 |
99 |
| NT Spatial Data Directory |
100 |
100 |
99 |
| Other Commonwealth Data (hosted by BRS) |
98 |
99 |
100 |
| Qld Spatial Data (QSIIS) |
100 |
100 |
99 |
| Queensland Department of Natural Resources and Mines Spatial Data |
99 |
99 |
99 |
| RAN Directorate of Oceanography and Meteorology |
99 |
83 |
99 |
| South Australian Spatial Information Directory |
100 |
100 |
100 |
| Tasmanian Spatial Data Directory |
100 |
100 |
100 |
| Victorian Spatial Data Directory |
99 |
98 |
97 |
| WALIS Interragator-Aerial Photography |
97 |
95 |
99 |
| WALIS Interragator-Bibliographic |
97 |
95 |
99 |
| WALIS Interragator-Environmental Impact Statements |
97 |
95 |
99 |
| WALIS Interragator-Natural Resource Monitoring |
978 |
94 |
99 |
| WALIS Interragator-Spatial Data |
97 |
95 |
99 |
| Average |
99 |
98 |
99 |
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://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 - 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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