Tính năng nó không có được đủ để hỗ trợ các phong cách lập trình mong muốn trong các lĩnh vực ứng dụng mong muốn (1988, p. 11). Ngôn ngữ lập trình hướng đối tượng vẫn đang được phát triển. | OBJECT-ORIENTED ANALYSIS AND DESIGN 29 features it does have are sufficient to support the desired programming styles in the desired application areas 1988 p. 11 . Object-oriented programming languages are still being developed and it is expected that new languages will emerge acquiring new features rapidly. From the mid-1970s onwards the research and development in artificial intelligence AI programming environments have also influenced the object-oriented paradigm. LISP is one of the main programming languages used in AI systems and several object-oriented extensions of LISP have been created. LOOPS Common LOOPS FLAVOURS KEE ART and New FLAVOURS are some examples in which a semantically ample form of inheritance is proposed that differs from the one encountered in most object-oriented programming languages such as Smalltalk. Here values in particular default values can be inherited as well as attribute names. Graham assures his readers that from his point of view AI people have got it right and that this kind of inheritance will gradually penetrate the world of object-oriented programming 1994 p. 78 . With the maturing of the concepts in object-oriented programming languages and their practical use in different application contexts research interests have diversified focusing on object-oriented design methods Object-oriented design is a method of design encompassing the process of object-oriented decomposition and a notation for depicting both logical class and object structure and physical module and process architecture as well as static and dynamic models of the system under design. Booch 1994 p. 39 Significant debate has occurred in this research area mainly concerning whether an object-oriented design method can be intrinsically independent of any programming language or whether current design methods are clearly attached to specific object-oriented programming languages. Most object-oriented design methods reveal the influence of Booch s pioneering work .
