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portals and mediated query systems. “Common data
storage” uses a method to transfer the data sources to
a new data storage, warehouse and operational data
stores are such kind of instances.
Compared with these integration approaches,
interoperability has more the meaning of coexistence,
autonomy and federate environment, whereas
integration refers to the concepts of coordination,
coherence and standardization (Chen, 2008). The
interoperable architecture will provide added values
for enterprise information systems interoperability.
First, due to the semantic technologies used in the
architecture, the “understanding” problems can be
facilitated among different information systems.
Secondly, with SOA, the architecture is loosely
coupled, where each layer is only connected through
interface and protocols. The data sources, services
and business processes could be added or removed
without affecting the other parts of the architecture,
gaining flexibility for the enterprise. Thirdly, it
provides high scalability; this architecture could be
applied internally in one enterprise for its sub
branches or different departments, as well as among
different enterprises and partners. Involved
applications and services can be reused ones; also
new developed ones can be added easily. We believe
this approach is promising regarding web 2.0
orientation of all enterprise applications.
5 FUTURE WORK
The future work will include, first, more details to
describe the running mechanism of the architecture,
such as, the interfaces between each layer. Second,
we will elaborate and refine the semantic layer to
define how the ontology presents the semantics of
information; third, the aspects of enterprises
business level (e.g. decision level) will be taken into
account to make the architecture adapted the
complex situation in enterprises. The architecture
will be applied to a project in the following research,
to figure out the improvements and get feedbacks
from industry.
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AN ARCHITECTURE FOR INTEROPERABILITY OF ENTERPRISE INFORMATION SYSTEMS BASED ON SOA
AND SEMANTIC WEB TECHNOLOGIES
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