Program Correctness
Program correctness is the state in which a computer program functions exactly as intended, fulfilling its functional requirements without bugs or unexpected side effects. In the context of smart contracts, this is an absolute necessity because the code acts as the final authority on the movement of value.
Achieving correctness involves a combination of testing, auditing, and formal methods to ensure that the code is robust against all possible inputs and states. When a program is proven correct, it provides a high level of assurance that the financial logic it enforces is secure and reliable.
It is the ultimate goal of the software engineering process in high-stakes environments, ensuring that the 'code is law' mantra is backed by technical certainty rather than just assumption.