Boost::units users, I have gotten my feet wet with boost::units over the past several days and starting to get the hang of it, dimensions, quantities, and units, and so forth. Now I would like to start thinking more in terms of how these units-based calculations should be used by the rest of our application. Of primary concern is to receive a quantity of dimension from the application in a specified unit and to be able to perform the calculations. One concept I've been wondering about is whether there is any value in converting units to a base unit for purposes of IPC (interprocess communication), saving to or loading from files, or that sort of thing. In this way we will know that if we see a quantity of length dimension, for instance, we can always expect the value to be presented in terms of, let's say, meters. My question concerning calculations is something along these lines: how does boost::units treat a quantity<dimension> when facilitating dimensioned calculations? Or is it on us as developers to ensure that an appropriate unit-conversion is taking place somewhere along the way when we are ready to interpret the result for display, report, or whatever? Let me know if I can clarify at all, because I am a little fuzzy along these lines at the moment. Thank you... Regards, Michael