Maslow's needs theory, from survival to self-actualization Maslow's hierarchy of needs theory, proposed by Abraham Maslow in the 1940s, divides human needs into five levels: physiological, security, social, respect and self-actualization. It is widely used in psychology, management and other fields to help understand human behavior motivation. Despite limitations, such as the complexity of requirements and inadequate consideration of cultural differences, ProcessOn tools provide templates to support theoretical learning and application, enabling individual and team growth.