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Fig. 3.7 Preconfigured parts for sequence alignment workflows
Fig. 3.8 Possible variation of the alignment workflow
5. Letting the user choose the service. If it is not known at workflow model-
ing time which alignment service shall be used, it is natural to leave the
choice to the user. For this purpose, an interactive SIB can be used that
displays a customized message dialog at runtime, asking the user to make
a decision. In this case the user can choose between ClustalW and Mafft.
According to which service has been chosen the SIB directs the flow of
control.
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