UseCase: BulkSpectralLineMeasures

PrimaryActor:

Researcher

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EndResult:

Measurement of Equivalent Widths of selected lines of bulk selected candidates

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OtherActors:

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PreConditions:

Pre-selected list of candidate objects for which sets of equivalent widths are needed.

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FlowOfEvents:

1. User selects a small subset of the objects and download appropriate spectra
2. User examines spectra and selects parameters for spectral lines.
3. User requests line measurements on full set of objects - to be done on remote server
4. System locates spectra of as many of the objects as possible
5. Line measurements are obtained for all spectra using appropriate parameters
6. Lines measures plus other parameters are subjected to an array of statistical tests
7. Correlation coefficients returned to the user
8. User compares results with pre-computed models

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PostCondition:

Extracted line measures are available for further analysis

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BasicAssumptions:

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AlternativeFlows:

1. Line measurement parameters may vary with catalogued parameter e.g. z
2. Pre-selected objects could be done in collaboration with remote co-workers

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Discussion:

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Links to ScienceProblems:

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KeyReferences:

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GoodStyle: Please add comments below. This area should be used for refinement of the above document. If you want to ask questions or start a dialogue with the author, please use (or create) a topic in the Use Cases Forum.
Author: Once the refinements here and comments in the forum die down, perhaps you could rewrite the problem, incorporating the comments and refinements.

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-- DavidGiaretta - 17 Feb 2002