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The description and classification of decorative patterns is a difficult and Contentious area of Pottery study, Specially if attempts are made to understand the structural content of the Pattern. The analysis of painted pottery is a task where much work has taken place. The Study of pottery in archaeology has become increasingly important over the last century, providing the archaeologist with information on many aspects of the past. In recent years, scientific developments and statistical techniques have contributed still further to the analysis of pottery. The widespread availability of computers has impinged as mach upon ceramics study as on m.any other aspects of archaeology. This paper covers information obtaind from painted pottery in two Neolithic sites Dalma, Ahrenjan and Hajji¬ Firouz. As well as detailing the structural pattern of painting by using special software. The Paper examine the suitability of computers techniques into the quantitative study and comparison of painted ceramic assemblages in a given prehistoric cultural period, this is essential when there are many data.