ALL Adobe products should allow type sizes to be specified using Metric units of measure instead of Imperial units of measure. This would avoid errors from converting between two different units of measure.

This website (https://www.cl.cam.ac.uk/~mgk25/metric-typo/) also recommends the use of a publishing 'metric point' equivalent to .25 mm because it corresponds to the dot pitch of many computer monitors.

There is also a unit of measure called the English Metric Unit that is equal to 914400, which would make it easier for your programmers to convert between Imperial and Metric units of measure. Please see http://polymathprogrammer.com/2009/10/22/english-metric-units-and-open-xml/.