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  1. When you read the group
    /Data/Run/Step:0000/EvrData
    you don't know if you are reading a V3 or a V4. If it is V4, there will be two datasets (data and present) but for V3 there will only be 1.
    1. In general, the full type information must be discovered by looking at the types in the datasets, as well as the number of datasets.
  2. Another place where you might like to use full names, is looping over sources by the id. Suppose the experiment has the four sources
    XppGon.0:Cspad2x2.0, XppGon.0:Cspad2x2.1, XppGon.0:Cspad2x2.2 and XppGon.0:Cspad2x2.3
    but the have been aliased to cspad2x2_front, cspad2x2_left, cspad2x2_right, cspad_2x2_back.
  3. You need to know the DAQ aliases to find the data. This may make things more difficult for a framework. Another idea is to write a separate group with the full DAQ source name, and have the DAQ alias be a soft link to this group.

So I think it important to have the full source and typename available in the group attributes.

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