The tutorial contains a course of lectures in the discipline "Certification of information systems." Designed for students of the specialty "Information Systems and Programming." The manual consists of two chapters: protection and safety of database information, certification of information systems. The concept, structure and basic requirements of national and international standards in the field of high quality software development are presented. The basics of certification, quality assurance and safety of software products based on international standards of the ISO 9000 series are described.