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. Author manuscript; available in PMC: 2009 Jun 2.
Published in final edited form as: Neuroinformatics. 2008 Oct 29;6(3):205–217. doi: 10.1007/s12021-008-9033-y

Figure 4.

Figure 4

A “data flow” trace that can occur while a keyword query is processed. To avoid clutter, we did not show the invocation of the index manager in a separate module. The mediator registry is connected to the Source Query Wrapper with a bidirectional connection because the registry is queried by the (database) wrapper and gets an answer back from it. For the same reason there is a bidirectional connection between the NIF Search Coordinator and the Web Result Postprocessor. Other variants of this trace are possible depending on the choices made by the user.