What is formal verification?

often used in testing computer circuits and software, formal verification is when the function of these systems is analyzed using mathematical formulas. In the case of software development, this process is usually used to display whether the program is working properly, based on a predetermined model. Sometimes it has been shown that the theoretical model is unsatisfactory. In addition to the source code of the software, formal verification can be used to develop combination circuits that are used to calculate computers and also as a computer memory. Different approaches include fact verification, verification in parallel and integrated verification except different methods. Software developers can find errors or errors in the source code and in the model used to create it in the first place. The time of the basic changes in the way the code is written can be done before the design error affects the final result. The verification step generally helps to determine whether the product does what it was supposed to do and meets the specification of the application for which it is.

Formal verification may occur after the product is completed, which is called the verification after the fact. The standard method used during the design and development process is not analyzed until the system is completed. Finding serious errors at this stage often leads to expensive and time -consuming revisions. Development and verification can also be carried out by two separate teams to verify in parallel. Through mutual communication, developers can focus on independent tasks throughout the design process.

Integrated verification is when one team performs development and required evaluation. MPPEX monematic concepts are often used to verify the product's ability along the way. Methods of formal verification differ between projects, but the model check is often used. The hardware or software model consists of different features that designers want in the finished product. The model and the system can be checked regularly to see if the properties match.

Further formal verification technique includes the use of mathematical formulas and logic to represent the system and its properties. The rules defined in the formal system are generally found in logic. Both of these techniques use different means to determine whether specific products are met. Developers can use different types of software in a formal verification process, each adapted to a specific system or programming language.