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developed by SMEs or startups can charge for
access, as well as applications for niche markets. For
instance, a developer can use consume two distinct
Open Data services offered in the platform: one
providing data from public transportation, and
another one providing real time traffic data. These
services can be composed and with additional
functionality the developer can provide an optimized
routing service from which he can charge and
monetize from. In another scenario, a government
agency may want to use a data transformation
service to upload raw XML data and convert it into
RDF according to the ontology used by the platform.
5 CONCLUSIONS
Nowadays many countries are following a global
trend where public institutions are planning and
implementing strategies for open government data.
As a way to encourage the usage of such data, local
competitions for applications development are being
organized, but the resulting applications are quickly
abandoned and, in the long run, very few of them
can monetize. Such evidence supports the argument
that just providing access to data is not enough to
unlock the potential of extracting significant
economic value from the usage of Open Data. In
order to achieve such goal, many challenges have to
be addressed, such as investing in technology to deal
with OD, and creating a marketplace for sharing
data. Since the IT industry is evolving to systems
that deliver everything-as-a-service, we support the
idea that OD can take advantage of such approach.
Services can help addressing such challenges and be
used as building blocks for the construction of a
platform for Open Data as a Service. The platform
would underpin an ecosystem that involves many
actors interacting and playing different roles. These
interactions would be done through data services and
mashups of such services that would generate other
services (e.g., service compositions, added-value
services) and end-user applications that could be
charged for their use, thus fostering the generation of
business around Open Data.
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