Information Technology Reference
In-Depth Information
The system is ready for data interchange with external Web Services. Also, the system can
be easily improved to share information on digital maps with external systems by
implementing, using and supporting the OpenGIS Web Map Server (WMS) and Web
Feature Service (WFS). Both Mapserver and ArcIMS can be configured to support WMS.
A large amount of measurement points at different time and conditions causing overlapping
and conflict between different observations, and the inaccuracy of measurements and
reports.
6. Conclusions
Consequently, intelligence programs have been developed, leading to recognition of a field
of activity called contamination analysis, which has been described as the identification of
and the provision of insight into the relationship between environment data and other
potentially relevant data with the view to specialist experts. A key part of this approach
enforcement is to understand those activities, through the development and use of methods,
models and tools for collecting and then interpreting the large volume of data available in
real time for environment protection investigation. Some issues for qualitative information
representation including statistical analysis are considered.
The water resource management information system proves that it is possible to establish a
Web portal that provides the users with information, on request, in a system based on
decentralised data sources. This project has also proved that it is possible to integrate
information from different institutions, based on different technology, into a common
information system by means of the Internet, XML and Web Service technologies, and by
bridging to the well known existing systems.
The WRMIS system architecture is designed both to serve a centralised and a
decentralised solution. It is therefore possible to configure a system so that the database
servers were placed at different geographical locations as well as at the same place. A
centralized solution with all the servers placed in one centre can be maintained by a
highly skilled staff that can both maintain the hardware, and the software. Such a centre
ought to have powerful equipment and Internet connections and the uptime for services
should be close to 100%. The disadvantages are that data, in many cases, are at the hands
of people that have none or but little knowledge on the use of data. There is therefore
some risk that the staffs have vague motivations for the system performance and further
development.
Another solution can be based on decentralized data warehouses, where different topic
centers are responsible for the maintenance of their own data warehouse. This requires for
competent manpower able to have the servers running as well as to administrate and
maintain the software and databases at each data warehouse.
7. Acknowledgment
We would like to acknowledge the developers from Denmark and especially engineer Kim
Jacobsen from Carl Bro regarding the possibilities to participate in the processes of
preparing the project "Transposition of the EU Water Framework Directive in Lithuania"
and realization of water resource management information system (WRMIS), and Ministry
of Environment of the Republic of Lithuania.
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