Abstract: A computer-implemented method for decomposing a decision table includes decomposing, by a computer processor, a decision table into a first sub-table and a second sub-table. The decision table includes two or more columns, and the decomposition is based on a semantic model describing relations among the two or more columns of the decision table. The first sub-table and the second sub-table together represent the decision table.

Abstract: In an approach to create a rule hierarchy model, a computer receives from a user a set of rules and an association between each rule in the set of rules and a concept of the plurality of concepts in a concept hierarchy. The computer receives set of rules is stored separately from the concept hierarchy. The computer determines a rule hierarchy where a rule of the set of rules is associated with one or more concepts. Furthermore, the computer creates a rule hierarchy model based on the concept hierarchy and the rule hierarchy wherein grouping related rules in a common structure provides efficient management that facilitates rule authoring, browsing, and extraction.

Abstract: A system dynamically schedules the creation of images in an on-demand printing apparatus outputting simplex and duplex prints. For each simplex print, a simplex print block is appended to a schedule of images to be created, and for each duplex print, a duplex print block is appended to the schedule. The duplex block includes two portions, one portion for each image in the duplex print, separated by a number of pitches which can be occupied by other images. The duplex and simplex blocks are then organized in a manner which preserves the desired final sequence of prints and minimizes the number of unused image pitches in the printing apparatus. The scheduling technique can also be applied to multi-pass color printing.