| http://www.w3.org/ns/prov#value | - For example, an Intranet system having data stored in various sources such as UNIX??? text files, Oracle or Microsoft Access??? database systems, and other proprietary or legacy database systems, may also be used to implement embodiments of the present invention. [0108] Referring to FIG. 1, the described arrangements may be practised as part of a data browsing application 120, that is executed as
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