Annotation: Importance of effective procedures of software testing is determined as complexity of a system which is constantly increasing as well as global competitiveness. In a specific case at the level of system integration where thousands of methods could be carried out before the release, we need to spend enough time to have the system tested fully and effectively. Automatization of subsets of manually-made tests is one of the ways to reduce testing efforts. More common is that testing cases have similarity which can be used as secondary using in test sets automatisation. In this article we research the possibility of reducing efforts of the test, ordering test cases before automatisation, considering that we may use secondary automated parts of test cases. In this article, we explore the possibility of reducing test effort by using re-automated parts of test cases. In our analysis, we explore several approaches of prioritization.