TY JOUR TI INDEPENDENT ASSESSMENT OF QUALIFICATIONS AS ONE OF THE TOOLS OF PERSONNEL MANAGEMENT IN AN ORGANIZATION ON THE EXAMPLE OF PJSC ROSSETI YUG KW independent qualification assessment KW professional standard KW professional exam KW professional qualification KW personnel management KW qualification assessment center KW electric power industry JO Science & World AU Boger, T.S. PY 2023 IS 2023 PB LLC "Perspektiva"