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Australian Spatial Data Directory (ASDD)

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Modified: 2009-12-07
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Quarterly Technical Report

April to June 2006


Introduction

At the end of June 2006, there were 26 repositories within the ASDD with a total of 42,851 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 April, May and June 2006.

Repositories which have provided descriptions are also listed.

Achievements during past quarter

  • There are less basic and more advanced searches this quarter than last quarter.
  • Overall there are more searches than last quarter.
  • There are less visitors and less 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; Australian Hydrographic Office - Product Metadata, Australian Hydrographic Office - Publication Metadata, Australian Hydrographic Office - Source Metadata, 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 2006-04-01 to 2006-06-30.

A summary of this quarter's statistics follows:

This Quarter Last Quarter
Spider page views (These values are excluded from the other web statistics.) 38,462 = 26% of all page hits 74,081 = 37% of all page hits
Total page views (Access of a page as a whole e.g. html): 107,528 124,893
Total visitors: 5,428 5,739
Starting day: 1st April 2006 2006-01-01
Ending day: 30th June 2006 2006-03-30
Total days covered: 91 90
Average page views per day: 1,182 1,388
Average visitors per day: 60 64

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:
Total page views per quarter
Average page views per day per quarter
Total visitors per quarter
Average visitors per day per quarter

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

  • 2909 searches were made through the ASDD basic gateway.
  • 1583 single search terms were used.
  • 1326 multiple search terms were used.

The following links provide more details on the monthly basic gateway statistics:

ASDD Advanced Gateway

  • 2106 searches were made through the ASDD advanced gateway.
  • 1205 single search terms were used.
  • 901 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 July 2006.

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.
  • 95% of the ASDD records were available in XML format for validation. This is more than last quarter.
  • 56% of XML records that were parsed are valid. This is about the same as the last quarter.
  • 3 repositories have 100% valid records, which is less than the last quarter.
  • 21 repositories are using or partially using ANZMETA-1.3.DTD or its extension, which is the same as last quarter.
  • "Not available" means that the server did not respond appropriately to the query at the time of investigation.

Repository Number of records available Number of records parsed Records that validate ANZMETA DTD Comments
ACT Geographic Data Directory 186 186 0 1.3 There are content problems.
Australian Antarctic Data Centre 1806 0 Not available Not available Inter-operable problems
Australian Hydrographic Office - Product Metadata 1142 1142 1142 1.3
Australian Hydrographic Office - Publication Metadata 2 2 2 1.3
Australian Hydrographic Office - Source Metadata 4985 4985 4985 1.3
BRS and Australian Natural Resources Data Library (ANRDL) 275 37 0 1.3 There are content problems.
Bureau of Meteorology 1 1 1 1.3
CSIRO Marine and Atmospheric Research 1719 1719 1709 1.3 There are encoding errors and content problems.
DEH Environmental Data Directory (Green Pages) 263 263 0 1.3 There are content problems.
Geoscience Australia 712 712 712 1.3
IndexGeo Pty Ltd - Eco Companion catalogue 11 11 5 1.3 and -//IndexGeo//DTD ANZMETA Resource 1.1//EN Invalid attributes and keywords.
Murray-Darling Basin Commission 221 221 93 1.3 no document type declaration.
National Oceans Office 870 870 834 1.3 There are content problems.
NSW Natural Resources Data Directory 5137 5137 5100 1.3 extension -//NSW NRIMS//DTD ANZMETA NSW NRIMS Page 1 v1.0//EN There are content problems.
NT Spatial Data Directory 406 406 0 No DOCTYPE provided no document type declaration.
Other Commonwealth Data (hosted by BRS) 59 59 57 1.3 and 1.1 Invalid keywords and convert all to ANZMETA-1.3.DTD.
Qld Spatial Data (QSIIS) 1795 1795 181 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 8752 8752 8752 1.3 and -//QSIIS//DTD QSIIS 1.3//EN
RAN Directorate of Oceanography and Meteorology 1897 1897 0 1.3 There are content problems.
South Australian Spatial Information Directory 865 865 809 1.3, 1.2 and 1.1 Convert all to ANZMETA-1.3.DTD, problems with keywords and missing end tags.
Tasmanian Spatial Data Directory 306 306 306 1.1 Convert to ANZMETA-1.3.dtd.
Victorian Spatial Data Directory 744 744 25 1.3 There are content problems.
WALIS Interragator-Aerial Photography 7526 7526 0 1.3 XML declaration allowed only on the very first line of the document.
WALIS Interragator-Bibliographic Data 1009 1009 1009 1.1 Convert to ANZMETA-1.3.DTD
WALIS Interragator-Environmental Impact Statements 835 835 0 1.3 Invalid attribute qualifier for element keyword.
WALIS Interragator-Natural Resource Monitoring 71 71 71 1.1 Convert to ANZMETA-1.3.DTD.
WALIS Interragator-Spatial Data 1273 555 259 1.3 and 1.1 Convert all to ANZMETA-1.3.DTD and content problems.
TOTAL 42868 40106 26052 -

Repository Reliability

A summary of repository reliability for the period April to June 2006 is given below:

Repository Up time April % May % June %
ACT Geographic Data Directory 99 100 99
Australian Antarctic Data Centre 94 100 99
Australian Hydrographic Office - Product Metadata 100 100 99
Australian Hydrographic Office - Source Metadata 100 100 99
BRS and Australian Natural Resources Data Library (ANRDL) 99 100 99
Bureau of Meteorology 100 100 99
CSIRO Marine and Atmospheric Research 99 100 99
DEH Environmental Data Directory (Green Pages) 99 100 99
Geoscience Australia 100 100 99
IndexGeo Pty Ltd - Eco Companion catalogue 99 100 99
Murray-Darling Basin Commission 99 100 99
National Oceans Office 99 100 99
NSW Natural Resources Data Directory 99 98 97
NT Spatial Data Directory 92 100 77
Other Commonwealth Data (hosted by BRS) 99 100 99
Qld Spatial Data (QSIIS) 99 100 99
Queensland Department of Natural Resources and Mines Spatial Data 98 100 98
RAN Directorate of Oceanography and Meteorology 99 100 90
South Australian Spatial Information Directory 99 100 99
Tasmanian Spatial Data Directory 99 100 99
Victorian Spatial Data Directory 99 100 99
WALIS Interragator-Aerial Photography 71 93 63
WALIS Interragator-Bibliographic 96 94 81
WALIS Interragator-Environmental Impact Statements 96 94 81
WALIS Interragator-Natural Resource Monitoring 96 94 80
WALIS Interragator-Spatial Data 96 94 80
Average 97 99 93

Monthly details about the server, port, database, available records query time and repository availability can be found at:

April
May
June

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
  • DEH Environmental Data Directory (Green Pages)
  • Geoscience Australia
  • IndexGeo Pty Ltd - Eco Companion catalogue
  • Murray-Darling Basin Commission
  • 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