Policy on CCDB Variations for Reconstructing Simulated Data

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There are two cases that we need to address:

  1. simulations intended to mimic conditions of already-taken real data
  2. simulations to explore conditions unlike any for which real data has taken

At the March 4, 2015 Offline Software Meeting we agreed on the following scheme.

  1. "mc" variation of CCDB: run numbers indicate the real-data run numbers that are being simulated. This variation already exists.
  2. user-named variations in CCDB: run numbers have a user-defined meaning, variation name reflecting speculative conditions being explored, e. g., "high-intensity", "upgrade-study-5".