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IMPULS project is divided in six work packages (WP).
This work package is mainly for project management and administration, to ensure a successful implementation of the IMPULS project. It includes activities such as planning, follow up and some general trainings and workshops.
Legislation, rules and policies supporting an efficient use of geodata is an important part of an infrastructure. Such legislation must at the same time protect essential interests related to, for example, national security and personal integrity. The legislation should also clarify rights and responsibilities for data custodians.
Also issues related to licensing and the usage of data is important. The conditions for use of data and services should contribute to a widespread use of existing data and services. It must also be easy for the users to see and understand the conditions that apply to a specific use. These conditions have to be relevant, non-discriminative and clearly described.
Spatial data are the essential part of any infrastructure and it is important that the data follow commonly agreed standards and specifications in order to make them interoperable, i.e. it should be possible to combine data within different applications, irrespectively of their original intended use.
In a national context, harmonisation of data makes it possible to combine data from different sources (data custodians) without extensive manual man work in terms of restructure and import of data into other systems. This is supporting the reuse of data by all stakeholders in a country. Also, in a regional context, data is usually stored in different "local" specifications and in different formats and database structures. Harmonised and interoperable data will enable cross-country applications throughout the region.
WP 3 will address these issues with the aim of identifying data sets of a common interest for the region and develop methods for how these data can be harmonised and interoperable. The work will be carried out in close cooperation with WP6 as the data to be selected should be based on the need from the pilots developed.
Spatial data and services need to be described in a standardised way in order to give the potential user an overview of the data and services that are available within the infrastructure, how to get access to data and services and the conditions for use. The descriptions should be clear, uniform and user-friendly. Such descriptions are commonly stored in a metadata catalogue which is accessed through a geodata portal. These latter two will be handled in WP 5.
A particular important part is to assess and describe quality of data. Data produced by different data custodians, with different techniques may be different in terms of resolution (both spatial and temporal), completeness and geometric accuracy. Known quality is essential for a user in order to be able to assess the "fitness for use", but there are also several other quality measures that should be applied.
Easy access to data is an underlying principle in any infrastructure. To this end, different types of web based services for provision of data from producers to users are developed. The services enable the user to get access to the data he needs when he needs it, and avoid to store a copy of the database. Some basic types of web services are the OGC standards Web Map Services (WMS) that enables a user to view data, and Web Feature Services (WFS) and Web Coverage Services (WCS) that enables users to download services. In order to discover (find) the data and services available within the infrastructure, a "discovery" service is essential.
Such discovery services commonly consists of a metadata catalogue, containing the descriptions of data and services handled in WP4, and an interface, usually a geoportal, that enables the user to search the metadata catalogue as well as displaying the selected search results in a map window. The geoportal is the node from which data and services can be found and accessed, the services themselves are distributed amongst the data custodians.
The benefits of the infrastructure will be shown through a number of use cases, which will act as test beds for work done in the other WP's. The selected fist use case, "Crisis management and prevention", is selected based on its relevance both from a national and regional perspective. A selected number of datasets have been identified in support of this use case, and will be used in order to show the benefits of the infrastructure in terms of access to harmonised data.
Vad innebär det att dela?
Nya testdata för fyra teman från Svensk geoprocess, bygger på data från Mölndals kommun.
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De nya dokumenten finns nu tillgängliga för gratis nedladdning.
Tillgången på geodata i Sverige är större än någonsin, ändå har många blåljusaktörer dåliga kartor.
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