Object-oriented programming-the problems of validation

The authors consider software validation, a process common to both maintenance and development, in the context of systems written in an object-oriented language. The problems in using current testing techniques for object-oriented systems are shown. The question of whether the language features present in object-oriented programming languages enhance or inhibit the testing process is raised. Also considered is whether any new techniques designed for object-oriented programming could be used to ease the testing process, which in turn would help both developers and maintainers produce more reliable code