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I view this as much too confining. We must be able to persist anything we put into the event, even if that information is not useful to the other collaborations. I do agree that track objects and all those downstream of them should be compatible with those used by other collaborations.
Treatment of Real Data
For now we are not considering the use case that we will (hopefully) someday use this framework to analyze data from a testbeam or from a real experiment. Therefore the hit and cluster classes all contain methods that return MC truth information. We did not define separate datahit classes and mchit classes in which the datahit classes are free from MC information.
New Geometry
The new geometry is well underway but not yet finished. This is the geometry that can describe the detector made of wafers. It can also describe a detector made of cylinders.
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