Geoinformation for Disaster and Risk Management - ISPRS

Interoperable data access - Integration of the
PDGNSS component in the evaluation concept
at the Aggenalm Landslide
One important aspect for an up-to-date monitoring
system is ease of use of the results. Status
information of the observed object - including
manifold metadata - should be attained as fast as
possible and easily understandable to the
corresponding users (e.g. administrators, experts,
stakeholders, common viewers). In times of
worldwide network-links by the internet,
interoperability has top priority. Trouble-free data
exchange between heterogeneous systems is only
possible with standardized interfaces. Therefore
providing open, standardized interfaces is an
essential criterion.
Interoperable data exchange requires the
unavoidable renunciation of file-based data storage
to a flexible and powerful (geo) database solution.
The management of huge amounts of data with
parallel and permanent access shared normally by
several different users is possible due to modern
data base management systems (DBMS). To satisfy
requirements of “interoperability”, the GSN at
Aggenalm Landslide uses an open source MySQL
database. The data flow and interaction of the three
different measuring methods is depicted
schematically in Fig. 8. The LC PDGNSS component
fits into the complete system as a so-called “sensor
plug-in”. The flexible design of the developed
software package described in section 3.3 allows
standalone adaptation, as well as trouble-free
integration in a more complex data flow.
Figure 8: Structure of the
alpEWAS sensor control
and data management
solution. The hatched
elements are currently
still under development
(Thuro et al. 2009b).
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