[jsdl-wg] Parameter Sweep Use Scenario

[Michel Drescher]

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Hi Mark,

thanks for the scenario description.

As we talked earlier, I managed to resolve your issue, but I would like
the JSDL WG to participate in that progress:

In summary, you describe the following scenario:
a) Legacy application that expects fixed names for input and output,
i.e. "wing.dat" and "output.dat"
b) The application also expects a second input data set residing in a
particular directory, which is named "engine.dat".
c) The input data and output data are structured so that explicit
command line parameter manipulation cannot be used, i.e. the input
contains 3D construction parameters for the wing and engine of an aeroplane.
d) The parameter sweep then consists of providing the application with
the appropriate input sets, and collecting the output using different
names in a shared directory for later comparison.

This scenario can be accomplished using the current draft for Parameter
Sweeps. The presentation I gave was unfortunately of quire executive
nature, so I left out probably important information.

The current draft expects XPath 2.0 expressions to select affected
parameters. The presentation obviously concentrated on the use case of
command lime parameter manipulation. However, as XPath 2.0 is employed,
one can select *any* element or even particle (sub-element of an XML
element or attribute value) of that document.

As the current parameter sweep proposal is intended to be embedded in a
JSDL document, it is allowed (and in fact, encouraged) to select
appropriate elements or particles of the DataStaging sub elements so
that the data staging element actually carries out the parameter sweep
functionality.

If there is a need expressed, I will assemble an example to illustrate this.

Cheers,
Michel


- --
Michel <dot> Drescher <at> uk <dot> fujitsu <dot> com
Fujitsu Laboratories of Europe
+44 20 8606 4834
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