A MODEL OF THE PRIORITY INFLUENCE OF FACTORS ON THE QUALITY OF POST-PRINTING PROCESSES

Abstract

The publishing and printing industry is extremely sensitive to the socio-economic situation. The main criteria restraining the book publishing development in Ukraine are: low demand due to low income of the population; replacing the practice of reading for fun with other types of leisure; non-compliance of the technical and technological equipment of most printing companies with the average world level; high cost of printing equipment and materials; high cost of printing services; difficulty of producing high-quality book products; low investment activity. Publishing and printing companies need modernization, both at the hardware and software level, in order to shorten the production time; to reduce the risks associated with the finished products quality; to reduce the production costs; to unify the production procedures, to adapt to the market needs.

The paper identifies a number of factors affecting the quality of post-printing processes. This set includes the following factors: production of brochures, binding, assembly, covering material, processing of book blocks, decoration, final processing, project. Influences and dependencies of the analysed factors are determined by the method of expert evaluation. A semantic network is developed that illustrates and denotes the connections between the factors. A formalized description of connections is made using the construction of predicate logic.

To determine the priority of each factor, the method of mathematical modelling of hierarchies is used, according to which a reachability matrix is formed, where zero indicates the absence of connections between a pair of factors, and one indicates the presence of a direct or indirect connection (connection of the first or second order). Processing the reachability matrix consists in carrying out the necessary number of iterations to establish the priority of factors. For this purpose, iterative tables containing four columns are created: the factor number; values corresponding to the data in the rows of the reachability matrix; values corresponding to the data in the columns of the reachability matrix, common values for the rows and columns of the matrix. Based on the results of the iterations, a model of the priority influence of factors is developed, on top of which there are factors with a higher priority, and below, respectively, with a lower one.