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Australian Spatial Data Directory (ASDD)

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Modified: 2004-07-07

Power Gateway Report for 200208

This report analyses the MetaStar Gateway logs to provide the following summaries. See some explanations of terminology below each table.

Warning: As with any statistics, you must take care with their interpretation.


Search Terms Used in This Gateway

Total number of searches conducted: 472

Note: Complex search queries can be composed, to yield accurate results. Multiple search terms are shown separated by delimiter, e.g. Title|Title|Abstract means 3 search terms combined with AND/OR

Complete search term Occurs
Full text|spatial overlaps 76
spatial overlaps 74
Full text 59
spatial overlaps|ANZLIC search words 51
Title|spatial overlaps 34
ANZLIC search words 19
spatial within 13
Custodian|spatial overlaps 13
Full text|spatial within 12
Full text|spatial overlaps|ANZLIC search words 8
Title|Full text 6
Custodian|Custodian|spatial overlaps 6
Full text|Ending Date,After 5
Full text|spatial within|ANZLIC search words 4
Title 4
Abstract 4
Full text|Full text|spatial overlaps 4
Full text|Full text|spatial within 3
Abstract|Title|Full text|spatial overlaps 3
Abstract|spatial overlaps 3
Title|spatial within|ANZLIC search words 3
Title|Full text|Ending Date,After|ANZLIC search words 3
ANZLIC search words|spatial overlaps 2
Beginning Date,After|spatial overlaps 2
Full text|Ending Date,After|ANZLIC search words 2
Full text|Full text|spatial overlaps|ANZLIC search words 2
Title|ANZLIC search words|Full text|Ending Date,After|ANZLIC search words 2
spatial within|ANZLIC search words 2
Full text|spatial overlaps|Custodian 2
Full text|Full text|Full text|spatial overlaps 2
Full text|ANZLIC search words 2
ANZLIC search words|Full text|ANZLIC search words 2
Custodian|Full text|spatial overlaps 2
Full text|Beginning Date,After 2
Custodian|Custodian 2
Custodian|spatial overlaps|ANZLIC search words 2
Title|Title|spatial overlaps 2
Full text|Full text|Ending Date,After|spatial overlaps|ANZLIC search words 2
Custodian|Title|spatial overlaps 2
Abstract|Full text|Full text|spatial within 2
Abstract|Abstract 2
ANZLIC search words|ANZLIC search words|spatial overlaps 1
Title|Title|Title|Beginning Date,After|spatial overlaps|Title 1
Custodian|Custodian|Full text 1
Full text|Full text|Full text|Full text 1
Custodian 1
Full text|Beginning Date,After|spatial within|ANZLIC search words 1
Abstract|Title|Full text 1
Full text|Beginning Date,After|spatial overlaps|ANZLIC search words 1
Custodian|Custodian|Custodian|spatial overlaps 1
Ending Date,After 1
Title|Abstract|spatial overlaps 1
Abstract|spatial overlaps|ANZLIC search words 1
ANZLIC search words|Full text|Ending Date,After|ANZLIC search words 1
Title|Beginning Date,Equal|spatial overlaps 1
Custodian|Custodian|Full text|spatial overlaps 1
Ending Date,After|ANZLIC search words 1
Abstract|spatial within 1
Beginning Date,Equal|spatial overlaps|ANZLIC search words 1
Abstract|Title|Full text|spatial overlaps|ANZLIC search words|Full text 1
Abstract|Title|Abstract 1
Title|Full text|Beginning Date,After|spatial overlaps|ANZLIC search words 1
ANZLIC search words|Full text 1
Title|Full text|Full text 1
Title|Title|Title|spatial overlaps 1
Full text|ANZLIC search words|Beginning Date,Before 1
Abstract|Title 1
Abstract|Title|Full text|spatial overlaps|Full text 1
Multiple search terms were used 297 times
Singular search terms were used 175 times
  • This table lists each different type of search that was used. It indicates how people are using the interface to build a complex search query.
  • Multiple search terms are shown separated by delimiter, e.g. Title|Title|Abstract
  • Recall that the interfaces provide multiple rows for text-based queries. In addition, the Power interface provides Spatial, Date, and Controlled terms capabilities.
  • "spatial overlap" option is the default for spatial search, so it will be used more often than "spatial within"
  • Full text ... Search anywhere in the document, i.e. all metadata fields
  • ANZLIC search words ... Theme keywords

Repositories Searched by the Queries

Repository Name Occurs
ACT Spatial Data Directory 252
Australian Antarctic Data Centre (AADC) 251
Australian Hydrographic Office - Product Metadata 239
Australian Hydrographic Service - Product Metadata 169
Australian Oceanographic Data Centre 251
BRS and Australian Natural Resources Data Library (ANRDL) 255
Bureau of Meteorology 252
CSIRO Marine Research 266
EA Environmental Data Directory 253
Geoscience Australia (formerly AGSO) 253
Geoscience Australia - National Mapping Division (formerly AUSLIG) 260
IndexGeo Pty Ltd - Eco Companion catalogue 253
NSW Natural Resources Data Directory 266
NT Spatial Data Directory 250
Other Commonwealth Agencies (hosted by BRS) 251
Qld Spatial Data (QSIIS) 305
Queensland Department of Natural Resources and Mines Spatial Data 292
South Australian Spatial Information Directory 319
Tasmanian Spatial Data Directory 258
Victorian Spatial Data Directory 251
WALIS Interragator-Aerial Photography 262
WALIS Interragator-Bibliographic Data 256
WALIS Interragator-Environmental Impact Statements 258
WALIS Interragator-Natural Resource Monitoring 257
WALIS Interragator-Spatial Data 261
  • This table shows the total number of searches conducted at each node (including successful and failed searches).
  • Repository ... A collection of documents that a certain custodian has published and made available for searching. Also known as a "node".

Responses Returned by the Repositories

Repository Name Type of Response Occurs
ACT Spatial Data Directory no results found 183
successful search 21
timed out 1
total hits 903
Australian Antarctic Data Centre (AADC) no results found 168
successful search 37
total hits 981
Australian Hydrographic Office - Product Metadata connect failed 2
no results found 147
successful search 34
total hits 2395
Australian Hydrographic Service - Product Metadata no results found 13
successful search 9
total hits 101
Australian Oceanographic Data Centre connect failed 7
no results found 31
search failed 167
BRS and Australian Natural Resources Data Library (ANRDL) no results found 106
successful search 102
timed out 1
total hits 7564
Bureau of Meteorology no results found 203
successful search 2
total hits 10
CSIRO Marine Research no results found 163
successful search 57
timed out 13
total hits 8277
EA Environmental Data Directory connect failed 1
no results found 110
successful search 95
timed out 1
total hits 3307
Geoscience Australia (formerly AGSO) no results found 145
search failed 9
successful search 52
total hits 2280
Geoscience Australia - National Mapping Division (formerly AUSLIG) no results found 109
successful search 105
total hits 2564
IndexGeo Pty Ltd - Eco Companion catalogue no results found 171
successful search 36
total hits 176
NSW Natural Resources Data Directory no results found 120
successful search 94
timed out 6
total hits 56283
NT Spatial Data Directory no results found 17
search failed 165
successful search 21
timed out 1
total hits 1354
Other Commonwealth Agencies (hosted by BRS) no results found 139
successful search 65
timed out 1
total hits 1422
Qld Spatial Data (QSIIS) no results found 131
successful search 126
total hits 15935
Queensland Department of Natural Resources and Mines Spatial Data no results found 124
search failed 66
successful search 10
timed out 45
total hits 8649
South Australian Spatial Information Directory no results found 121
successful search 146
timed out 1
total hits 9582
Tasmanian Spatial Data Directory no results found 186
successful search 23
timed out 1
total hits 661
Victorian Spatial Data Directory no results found 162
successful search 43
total hits 6000
WALIS Interragator-Aerial Photography no results found 180
successful search 34
timed out 1
total hits 74592
WALIS Interragator-Bibliographic Data no results found 172
successful search 37
total hits 6620
WALIS Interragator-Environmental Impact Statements no results found 190
successful search 21
total hits 4844
WALIS Interragator-Natural Resource Monitoring no results found 185
successful search 25
total hits 219
WALIS Interragator-Spatial Data no results found 124
successful search 89
total hits 10785
  • successful search ... The search succeeded and one or more metadata records were found to match. The value is the number of such successful searches.
  • total hits ... The accumulation of all matches to all searches at this node. This statistic is skewed towards the larger repositories - more metadata records, means more possible hits.
  • no results found ... The search did succeed, but no matches were found. The value indicates the number of searches that resulted in no matches.
  • search failed ... The search failed for a node-specific reason. Possible causes include: server misconfiguration, out-of-date server software at this node, network failure during search.
  • timed out ... The remote search server could not be contacted. Possible causes include: offline for maintenance, network congestion. The ASDD Help shows other reasons.
  • connect failed ... The remote search server was contacted, but did not respond properly. Possible causes include: server software configuration error, software failure

Presentation Requests Asked of the Repositories

Repository Name Type of Request Occurs
ACT Spatial Data Directory Brief results 4
Full record 3
Australian Antarctic Data Centre (AADC) Brief results 4
Full record 2
Australian Hydrographic Office - Product Metadata Brief results 4
Full record 2
Australian Hydrographic Service - Product Metadata Brief results 1
BRS and Australian Natural Resources Data Library (ANRDL) Brief results 19
Full record 19
Bureau of Meteorology Brief results 1
Full record 2
CSIRO Marine Research Brief results 9
Full record 4
EA Environmental Data Directory Brief results 13
Full record 7
Geoscience Australia (formerly AGSO) Brief results 9
Full record 5
Geoscience Australia - National Mapping Division (formerly AUSLIG) Brief results 39
Full record 32
NSW Natural Resources Data Directory Brief results 93
Full record 60
NT Spatial Data Directory Brief results 4
Full record 2
Other Commonwealth Agencies (hosted by BRS) Brief results 2
Qld Spatial Data (QSIIS) Brief results 138
Full record 85
Queensland Department of Natural Resources and Mines Spatial Data Brief results 13
Full record 9
South Australian Spatial Information Directory Brief results 193
Full record 216
Tasmanian Spatial Data Directory Brief results 11
Full record 13
Victorian Spatial Data Directory Brief results 5
Full record 7
WALIS Interragator-Aerial Photography Brief results 21
Full record 8
WALIS Interragator-Bibliographic Data Brief results 13
Full record 1
WALIS Interragator-Environmental Impact Statements Brief results 7
Full record 3
WALIS Interragator-Natural Resource Monitoring Brief results 2
Full record 2
WALIS Interragator-Spatial Data Brief results 87
Full record 52
  • Brief results ... Display the listing of titles returned from a search. The user has conducted a search which yields results. They have selected to see the results from a certain repository. That node sends a brief listing, showing hyperlinked titles.
  • Full record ... Display a complete dataset description. From the brief listing from a certain node, the user has selected to see the full metadata record.
  • You might think that this table does not correlate with other tables. However, remember that when the results come back from a search, the user may select to see the results from only one or two nodes, even though there may have been successful searches at other nodes as well.

Miscellaneous Statistics

ANZLIC search words used (top 10)

ANZLIC search words Occurs
VEGETATION 17
PHOTOGRAPHY AND IMAGERY Aerial 15
AGRICULTURE Crops 9
LAND 6
BOUNDARIES 5
BOUNDARIES Administrative 5
LAND Topography 5
LAND Cadastre 4
AGRICULTURE Livestock 4
UTILITIES 3
  • The default term is AGRICULTURE, so this will sway the results.
  • Terms beginning with a word in all uppercase characters indicates that they used the "Controlled Terms" option. Otherwise they must have used the text options which allow them to enter their own text to search against this field.

Number of repositories selected for simultaneous search

Number of repositories Occurs
1 repository 191
default (all repositories) 157
24 repositories 92
2 repositories 14
5 repositories 8
3 repositories 5
4 repositories 2
6 repositories 1
12 repositories 1
7 repositories 1
  • Each search is conducted simultaneously against a certain number of repositories (as selected by the user).
  • If the user forgot to specify a list of repositories to be searched, then the default is to search against all repositories.
  • A high number of repositories probably indicates that they used the "select all" button.

Phrase search versus single-word search

Text search type Occurs
Phrase search 88
Single-word search 293
  • Phrase search ... more than one word occurring together

Other statistics

Search type Occurs
ANZLIC Unique ID 31
Right-truncation 37
  • ANZLIC Unique ID ... they searched for particular IDs using a Full-text option
  • Right-truncation ... they used a wildcard * to match any word-ending (see ASDD Help)

Errors Detected by Gateway

Type of Error Occurs
[Id=114]Unsupported Use attribute[Unsupported Use Attribute: 1003] 15
[Id=114]Unsupported Use attribute[Unsupported Use Attribute: 2002] 146
[Id=114]Unsupported Use attribute[Unsupported Use Attribute: 2039] 131
[Id=117]Unsupported Relation attribute[Unsupported Relation Attribute, Attribute Set=1.2.840.10003.3.9, Attribute Number=18] 7
[Id=118]Unsupported Structure attribute[Unsupported Structure Attribute, Attribute Set=1.2.840.10003.3.9, Attribute Number=109] 196
  • Unfortunately the log files do not record at which node the error occurred.