Due to the universal using of information technology in contemporary enterprises for data collection and processing, the paper focuses on presenting the areas and benefits of the one of the analytical tools supporting audit techniques -CAAT (Computer Assisted Audit Techniques). Particular attention has been pointed out to the use of CAAT techniques during carrying out audits in the certification process and, consequently, during making the decisions of the compliance, of the Quality Management System (QMS) with the requirements of ISO 9001:2015.