An apparatus and method for correction of relative object-detector motion between successive views during optical tomographic imaging in three dimensions. Identifying the match of the client, verifying client information, changing parameters in a conditional database and communicating alerts based on the results. Preferably, the lipid acyltransferase is one which is capable of transferring an acyl group from a lipid to one or more of the following acyl acceptors: a sterol, a stanol, a carbohydrate, a protein or a sub-unit thereof, glycerol. The method also includes determining a price that each winning bidder pays for their respective advertisement slot or slots. An nth mathematical model is created based on the metrology data and the data for the plurality of process variables for each of the n process steps.