Information Technology Reference
In-Depth Information
The examples of development multi-componential decision support system are
demonstrated on research investigations according to the requirements of European Union
(EU) Water Framework Directive, Sustainable development Directives and EIONET
ReportNet infrastructure. The main components of decision support system are analyzed by
using different knowledge modelling and web service development techniques. The
structure of water resource management information system (WRMIS) becomes the core of
the decision support system in which web services are realized. The main components for
evaluation of processes of contamination and water monitoring are represented by data
warehouse structures.
The solutions to satisfy the interoperability requirements are demonstrated by architectural
design of the system by integrating the distributed data warehouses and geographical
information system means. The web services are based on common portal technology. The
organizational and political arrangements require deeper and stronger participation
activities by all members in reporting and understanding the importance of sustainable
development problems and risk evaluation possibilities.
4. The architecture of component-based decision making system for
evaluation of water contamination processes
The core of our decision support system and portal web service realizations is the
information system - WRMS that realizes main interoperable functions of distributed
information systems of water data storage. This water resource management information
system (WRMIS) is developed under the project "Transposition of the EU Water Framework
Directive in Lithuania" (Carl Bro as and AAPC 2003). The EU Water Framework Directive
(Directive 2000/60/EC) and the future European environmental data reports repository
ReportNet (Saarenmaa 2002) imply.
4.1 The constructions of the core system
Main principles of water resource management information system development: (1) a
holistic approach, requiring integration of data and knowledge from different institutions
and regions; (2) high data storing, analysis and reporting requirements; (3) assured
interoperability based on XML Web Services, SOAP, HTTP protocols; (4) requirements for
reporting in a format of GIS maps.
On the other hand, the detailed guidelines and software tools of ReportNet for Water sector
data have not yet been finalized.
A focus area for the WRMIS prototype is to facilitate easy dataflow between the institutions
and give access to data for relevant institutions and the public.
Most of the existing environmental information systems have evolved during a long period
of time. Also, they stem from different traditions. Therefore most of the systems are found to
be both heterogeneous and scattered - without much possibility of using data and
information in an integrated manner. In the years to come it will be a necessity to combine
data from many sources to better understand the environmental processes and to be able to
make the required reporting. It is possible to overcome these barriers by creating an
environmental portal.
Also it has been cleared up that the main general challenges to be met in developing such an
environmental portal are as follows: (1) Ownership of data; (2) Telecommunication/Digital
infrastructure (allowing sufficient Internet throughput); (3) Maintenance and development
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