David Crossley: Curriculum Vitae

Personal Particulars

Director, IndexGeo Pty Ltd

160 Cowper Street, Goulburn. NSW. 2580. Australia.
phone: 02 48 221404 international: +61 2 48221404
email: dcrossley -at-

Born: around 1955+ in Australia

I have a background in professional cadastral land surveying and more recent qualifications and experience in the field of information technology. This enables strong expertise in the technical aspects of Geographic Information Systems and search/retrieve services.

Educational Qualifications

  • 1992: Graduate Diploma in Computing Studies. University of Canberra. Australia.
  • 1985: Registered Surveyor. New South Wales. Australia.
  • 1981: Bachelor of Surveying. University of New South Wales. Sydney. Australia.
  • 1974: Higher School Certificate. Nowra High School. NSW. Australia.

Outline of Expertise

Internet and local network services
- applications development for interactive online services
- World Wide Web (WWW), Wide Area Information Servers (WAIS), Z39.50 Search and Retrieve protocol
- interoperability testing of Z39.50 and SRU (Search and Retrieve via URL) and CQL (Contextual Query Language) and CSW (Catalog Service)
- integration with other systems (DBMS, GIS, search facilities)
Geographic Information Systems (GIS)
- technical issues, applications development, integration with other systems
Relational Database Management Systems (RDBMS)
- design and implementation
Programming and application development
- Python, Perl, C, UNIX scripting, UNIX tools, XSLT, CSS, Javascript, SQL, CQL/PQF, statistical packages
- Standard Generalised Markup Language (SGML) and XML for document management and presentation
- XML validation and processing
- Data management processing and analysis
Open-source software and open development
- Participation at The Apache Software Foundation
User needs analysis and systems design
Liaison, and staff management

Career History

February 1996 to present
IndexGeo Pty Ltd
We establish network directory services for digital libraries of geographic information, focussed on the environment and natural resources
Some major projects:
  • Z-alarm - Ensure information server integrity. A network monitoring service to assist the managers of geographic information discovery servers to ensure that their facilities are reliably available. Conducts a suite of individual tests against each Z39.50/SRU/CSW target to ascertain conformance to the protocols.
  • Eco Companion environmental resources catalogue and online document management service. Concise descriptive documents are personally managed by members and published as catalogue records. Sophisticated library search facilities (using Z39.50) enable effective resource discovery and promote documents to worldwide virtual library networks. Document management facilities use Standard Generalised Markup Language (SGML).
  • Australian Spatial Data Directory (ASDD) implementation project (distributed geospatial search system using Z39.50) - technical assistance to initial nodes, produce technical documentation, implement ASDD gateway
  • Establish some nodes of the ASDD, e.g. Bureau of Rural Sciences and ANRDL (now ABARES), Australian Surveying and Land Information Group (AUSLIG), Australian Hydrographic Office (AHO), Australian Antarctic Data Centre (AADC), and of course Eco Companion
  • Locality mapping component of "Search AUSLIG Master Names File" interface
January 1992 to February 1996
Environmental Resources Information Network (ERIN)
Geographic Information Systems (GIS) Manager
- various online interactive services
- metadata system for documenting spatial datasets, and management and discovery
- design and implementation of geographic information systems
- design and implementation of database management systems
- interface development
- UNIX robots which come to life each night, scurry around the filesystem, and send summary emails to metadata managers
- integration of scientific and statistical systems
- staff training, support, and advice
Cape York Peninsula Peninsula Land Use Study (CYPLUS)
- scientific computing support for ERIN's projects in CYPLUS
- design and implementation of geographic information systems
- design and implementation of database management systems
- interface development
- integration of scientific and statistical systems
- staff training, support, and advice
Implementation of Environmental Resources Information System (ERIS)
- load datasets to ORACLE database
- build UNIX scripts to process input data files for data validation, reformatting, content error detection, and analysis
- develop systems to automate and facilitate data loading to RDBMS
January 1990 to January 1992
University of Canberra, Australia.
Graduate Diploma of Computing Studies
July 1985 to January 1992
David Crossley and Associates, Cadastral Surveyors, Goulburn
Principal, Registered Surveyor
Various other cadastral surveying firms
January 1976 to July 1985
Various cadastral surveying firms
Trainee and graduate surveyor
January 1975 to November 1980
University of New South Wales, Sydney, Australia.
Bachelor of Surveying
Various cadastral surveying firms
Trainee field hand

Papers and Presentations