Traditional structured analysis techniques focus upon the flow of (71) within a system. Object - oriented analysis emphasizes the building of real - world models. It examines requirements from the perspective of the classes and objects found in the vocabulary of the (72) domain.
Traditional system design method emphasizes the proper and effective structure of a complex system. Object -oriented design method encompasses the process of object -oriented decomposition and a (73) for depicting both logical and physical as well as static and dynamic models of the system under design.
Object - oriented programming is a method of implementation in which programs are organized as cooperative collections of objects, each of which represents an (74) of some class, and whose classes are all members of a hierarchy of classes united via (75) relationships.
75（）
A．control
B．inheritance
C．inference
D．connection
参考答案：B
解析：
(参考译文)传统的结构化分析技术关注系统内部数据的流动。面向对象分析方法强调建立现实世界的模型。面向对象分析方法从问题域中的类与对对象的角度考查需求。
传统的系统设计方法强调正确有效的分析复杂系统的结构。面向对象的设计方法强调面向对象的结构过程，强调描述所设计系统中的逻辑的、物理的、静态的、动态的模型。
面向对象的程序设计是一种系统实施方法，在这种方法中，程序是通过互相合作的对象集合组织起来的，其中每个对象都是有某些类的一个实例，而这些类又都是通过继承关系构建起来的类等级体系的成员。