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4th way 2 SDI

What are three common ways, how to build SDI, how 4th way could integrate all this approaches

3 ways of  SDI building

  1. Public administration - this group is oriented on INSPIRE. Data stored on this portals have life cycle. This means that this data are acquired every day, week, month, year, … and it is known when this data was made.
  2. Commercial Public portals –it can be put Google, yahoo and another portals in this group. It is used every day by ordinary users whose looking for some information. This data can't be mainly used because we don't know for example license, property or time of making of data.
  3. Online communities –best known in this group is probably OpenStreetMap . This is open source spatial data which is available all over the world. Data are made by everyone who knows how to do it.  Problem is that this data are made continuously and don't have conditions of checking up of changes. What is big advantage is that it has big human power.


4th way

  • Solution provided by Help Service Remote Sensing, Czech Centre for Science and Society  and WirelessInfo, which is  interconnection of information of public administration, commercial sector and social networks into one large distributed network of information and services.
  • Intellectual Property Rights to information and services are preserved (provider can decide to whom and how the data and the services will be provided).
  • INSPIRE compliant, exploitation of open standards. Our “4th WAY 2 SDI” is a support for building of Single Information Space in Europe for the Environment (SISE) and Shared Environmental Information Space” (SEIS) .

Pyramide versus "SpiderNet" principle

 Abbas Rajabifard at all in „From Local to Global SDI initiatives: a pyramid of building blocks“  defined pyramid as basic infrastructure for building of global SDI. Current experiences demonstrate, that for practical usage is more efficient “spider net infrastructure”, where different local or global levels are able directly share data.  As examples could be for example mentioned cross border systems, system of different communities across Europe or world, etc.

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