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6 th GEO Capacity Building Committee Meeting TASK REPORT CB-07 01e Open Source Software. João Soares vianei@dsr.inpe.br INPE - BRAZIL. Background and Objetives. Encourage the use of OSS across EO value chain Inventory of OS solutions within GEO Post the inventory into the Web Portal
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6th GEO Capacity Building Committee MeetingTASK REPORTCB-07 01eOpen Source Software João Soares vianei@dsr.inpe.br INPE - BRAZIL
Background and Objetives • Encourage the use of OSS across EO value chain • Inventory of OS solutions within GEO • Post the inventory into the Web Portal • Encourage development of OSS solutions by building on existing efforts • TerraLib and TerraView as starting GIS platforms (integrated Earth Observation and GIS data)
Empowering people with geo technologies • The white-box model: • People • Learning by doing x learning by using • Methods • Translate concepts into working procedures • Software • Provide adequate support for data analysis and integration results = people + methods + software
Why TerraLib and TerraView? Technology has changed • Previous generation of GIS • Built on proprietary architectures • Interface+function+database = monolithic system • New generation of object-relational DBMS • All data will be handled by a DBMS • Standardized access methods (e.g. OpenGIS) • Users can develop customized applications
Free and Open Source Software for Geo • FOSS has established itself as a viable alternative to proprietary software • Four fundamental freedoms: run, study, redistribute and improve the software • Benefits: cost reduction, community, innovation, freedom, enjoyment,... • FOSS for Geo include: • Web mapping • Desktop applications • Geospatial libraries • Interoperability
Different GIS architectures are needed • Desktop GIS • Single-user • Emphasis in friendly interfaces and analysis functions • Distributed GIS • Multiple users • Data sharing • Emphasis in access and simultaneous control • Web services • Using the Internet to disseminate data and services • Emphasis in usability and flexibility
TerraView • GIS that allows the construction, visualization and analysis of a TerraLib database • FOSS – LGPL • It can be customized by Plugins
TerraLib • A library to develop geographical applications • Open Source Policy – LGPL • Open Protocols • Use DBMS • Allows users to customize a solution
Applications built on TerraLib • Cadastral Mapping • Improving urban management of large Brazilian cities • Public Health • Spatial statistical tools for epidemiology and health services • Social Exclusion • Indicators of social exclusion in inner-city areas • Tools to help decision makers to create public policies for social development • Land-use change modeling • Spatio-temporal models of deforestation in the Brazilian Amazon • Emergency action planning • Oil refineries and pipelines (Petrobras) Building partnership and networks for operating under an agreed agenda
Milestones achieved to date • TerraLib programming tutorial in English - guides the user through general concepts of GeoInformation, spatial databases and the particularities of TerraLib. • First experience of an e-learning course in TerraLib Programming carried on in the context of eduGI.LA project (Network for GI science education – Latin-America, funded by the European Commission under the ALFA program). • Started the inventory of OS in GIS • Establishement of the Open Source Geospatial Foundation (INPE one of the sponsors). • TerraView tutorial in English for basic use, providing a sample data set. • Marlin visualization tools for CBERS users
Expected Milestones for 2008 • Identify OSS solutions for use in GEO • Building on existing inventories • Develop TerraView and TerraLib training material, courses, tutorials and documentation for both programmers and end-users available (in English) and develop specialized training material for e-learning. • TerraView Site in English • Lauching of the TerraView and TerraLib version 3.2.0
Extent of participationRecommendations for additional participants • Who could contribute to this task? • ITC • Very many others... • Other issues: • Coordination points with other GEO work plan tasks need to be improved • Potential risks that may impede completion of task – inventory restricted to few aspects of EO • Gaps that have been identified that need to be addressed independently – bring other dimensions of OSS • Potential Contributions to the CB portal /GEO Portal – Links of OS with description, education tools from OS community members • Expected products – OSS made available with e-learning and training materials • Expected date of completion of task – go along GEO and GEOSS • Expectations of task lead from CBC – increase participation
Final remarks • Combining open source software with the technical workforce available in developing countries can enable technology transfer • TerraLib and TerraView have INPE’s support for a long term maintenance policy
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