Boolean operations are logical methods used to combine, subtract, or intersect sets of data or objects, most commonly applied in computer science, mathematics, and digital design. In fields like cybersecurity and computer-aided design (CAD), Boolean operations help filter search results, control access, or construct complex 3D models by merging, subtracting, or finding the overlap between shapes. These operations are based on Boolean algebra, which uses logical operators such as AND, OR, and NOT to process information efficiently and precisely.