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Identification result issued from a search engine, such as Mascot® server and validated by user are represented by Identification. These identifications could have been done on 1 peak list or on a merged peak list.
In all case, a Sample can be associated to the Run. In some rare case, when run represents acquisition control, there will be no sample linked to the run.
Properties are characteristics attached to a given “object”, such as an Identification, a Context, a Protein Group, a Run or a Peptide.