TY CONF TI ON THE APPLICATION OF SYSTEM ANALYSIS METHODS IN THE DESIGN AND DEVELOPMENT OF SECURE SOFTWARE KW System analysis KW decomposition KW SWOT analysis KW «What if» models JO MODELING INFORMATION SYSTEMS AND TECHNOLOGIES – 2026 AU Kravchenko, A.S. PY 2026 PB FSBE Institution of Higher Education Voronezh State University of Forestry and Technologies named after G.F. Morozov