Systematic Inventive Thinking (SIT) is a thinking methodology where creativity takes center stage. SIT is a practical approach to creativity, innovation, and problem-solving, which has become a well-known methodology for innovation. The five principles of SIT are 1) Subtraction, 2) Division, 3) Multiplication, 4) Task Unification, and 5) Attribute Dependency. SIT is different from other innovation methodologies because it focuses on the product itself rather than the customer