This invention concerns a process for producing oxide thin film on a substrate by an ALD type process. The polys is prepared from a dianhydride and a diamine, wherein the diamine is a diamine having tert-butyl group, i. The system receives structural data, selects points for modeling a property of a subsurface earth volume, and propagates values for the property directly to the points in gridless three-dimensional space. Based upon the first index identifier and the second index identifier, a third index identifier is determined. The match system may then execute all or a portion of the trade.