The BARC wants to make the measurement of  viewership transparent. If a broadcaster claims leadership position in a particular genre, time-slot or geographical territory, the BARC guidelines must be followed. A leader is not created overnight. At a given moment, or in a given day someone might be ahead or behind. This temporary phase cannot constitute leadership. It is a momentary blip, and is a weak foundation on which a leadership claim can be built.

The Council has specified that there should be comparision which must cover at least four consecutive weeks of data and at least four consecutive hours of data.

The Council expects that only data from e-direct outputs of BMW or Broadcast Media Work station should be used. If there is extrapolation or interpolation such outputs should not be used in the public domain.

BMW is the rating software which the subscribers to BARC ratings get for analysis. This software takes care while churning out data that the sample size is not less than 200.