Human performance technology (HPT) is a field of practice in which the experiences and reflections of practitioners and professionals aim at improving human performance in a systematic process in the business environment. Human performance technologies are an applied science that identifies performance problems that exist in organizations, identifies the causes of performance problems and develops solutions for them, evaluates the results of implementing the solution in the organization, and evaluates all performance improvement processes. In this study, the factors that are effective in the performance of the projects in the leading companies in the information technology sector were discussed in the process of human performance technology and it was aimed to determine the performance problems in the information technology projects and to propose solutions there. Factors affecting the success / failure of information technologies projects have been reduced to two sub-factors, namely the impact of work processes and work teams. Identifying the team / teams that cannot fulfill the expected tasks and determining the process deficiencies are two factors that affect the project performance and the solutions that can be developed by applying the HPT processes have been investigated.