Role of the communities in building of Spatial Data2010-11-05
What are methods, how it is possible to build Spatial Data Infrastructure? What is the future of SDI building in development countries? How developing countries could profit from new technologies? How experiences form Europe could be implemented in Africa? And what we can do together? These are questions, which I would like answer during my presentation.
The most often way to build SDI are:
- Building SDI by Public administration – in Europe is public based SDI mainly supported by INSPIRE initiative. There are defined rules for data and life cycle. This means that this data are acquired every day, week, month, year, … and it is known when this data was made, who is author etc. Data are often managed together with metadata.
- Commercial Public portals –like Google, Yahoo, Microsoft and another portals in this group. It is used every day by ordinary users who are looking for some information. This data can't be often used for building of local or regional SDI, due license issue, but there are also missing information as a property or time of making of data.
The third alternatives are voluntary or online communities.As the example of OpenStreetMap shows, nowadays citizens have an interest in sharing their findings within a community. Therefore, the architecture should foresee collaboration possibilities for people who are not employed by environmental agencies. Data are eventually reported by the general public needs to be checked and validated before it may be published. What is some time problem are specific data models and formats. This made their usage some time difficult for non specialist.
This is why we are now trying to promote our 4thway of SDI building. The basic idea is to use advantages of standardisation efforts like INSPIRE or OGC and combine this effort with both, commercial initiatives and also and mainly with support for voluntary initiative. The goal is to bring all this possibilities nearest to people, in form, which is easy accessible and understandable. Our idea is that future solution has to support integration of spatial and non spatial information.
What we would like also promote is to shift from the pyramid paradigm, which is often mentioned in the relation to building of Global SDI to paradigm of spider net. With our concept we prefer system of distributed data sources, where every provider could decide about accessibility of his data against concept of cloud computing, where one organisation is managing all information. The idea is not against outsourcing of data or services or using of external services, but to have control about data from the side of data holders. For implementation of this concept, we suggest ideas of Geoportal4everybody.
GeoPortal4Everybodyis concept, which is based on next principles:
- Independent components
- Composition according to user requirements
- Based on SOA
- Possibility to integrate with other resources
- Open Source
- Open Standards
- Extension to non-GIS community
- Open Search
- Administration of other (non-spatial) data sources