CONCLUSION
Web Services is s popular and promising paradigm in
distributed computing, and is supported by many IT vendors
and manufacturers. Loglo is built on SOA, and is very
convenient for information integration in large scale.
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We have implemented a prototype system of Loglo. The
system has the all basic components of Loglo, and succeeds in
generating the target information based on eight sources in
different format from a real factory. The system successively
deleted the out-of-date meta-information about a non-existing
information or id-changed information. Currently, IIDL only
describe the rules how to generate the target structured
information from the source structured information. We have
developed the drivers of SQL server, Excel, Access, pure text
file, XML file, several sensor information. More works will be
done in the future