Software engineering is that the systematic application of engineering approaches to the event of package. A computer programmer could be a one that applies the principles of package engineering to style, develop, maintain, test, and appraise computer package. The term technologist is usually used as a equivalent word, however may additionally lack connotations of engineering education or skills. Engineering techniques are used to inform the package development method that involves the definition, implementation, assessment, measurement, management, change, and improvement of the package life cycle method itself. It heavily uses package configuration management that is regarding consistently dominant changes to the configuration, and maintaining the integrity and traceability of the configuration and code throughout the system life cycle.