Improvement in data quality in the context of modern analytical technologies

Identification of the term “data quality” with respect to the information-analytical systems is made in the article. Division of methods for enhancing the quality of the data into groups and species is carried out. Assessment of data quality as a key element of IT-related technology connected with management of data quality is emphasized. To form an effective methodology for assessing the data classification of stages of the process for assessing data quality is given, and brief comparative analysis is provided, data quality problems based on three levels, indicating the specificity of each of them, including the relevant factors, manifestations and control sites with identified problems, are systematized.