Coding can be defined as the process of transforming the system design into the computer format that is high level language format. This phase of software development concerned with transforming system design into source code which can be executed by computer that performs some task as it was designed during design phase. Coding must be readable and understandable as well as it reduce the complexity of code.

Testing is an activity which is performed by group of people to determine or check whether the actual result matched with the expected result or not and also it ensures that system is defect free. It helps to identify errors, bugs and missing requirement to the actual requirement. It contains various attributes like scalability, reliability, portability and reusability.