OOA(Object-Oriented Analysis)模型由5个层次和5个活动组成，5个层次不包括(51)，5个活动不包括(52)。OOA在定义属性的同时，还要识别实例连接。实例连接是一个实例对象与另一个实例对象的(53)关系。

A．主题层

B．对象类层

C．动态层

D．结构层

[单选题] Object-oriented analysis (OOA) is a semiformal specification technique for the object-oriented paradigm. Object-oriented analysis consists of three steps. The first step is （71）. It determines how the various results are computed by the product and

[单选题]Object-oriented analysis (OOA) is a semiformal specification technique for the object-oriented paradigm. Object-oriented analysis consists of three steps. The first step is （71）. It determines how the various results are computed by the product and p

[单选题]Object-oriented analysis(OOA)is a semiformal specification technique for the object-oriented paradigm. Object-oriented analysis consists of three steps. The first step is(71). It determines how the various results are computed by the product and pres

[单选题]Object-oriented analysis (OOA) is a semiformal specification technique for the object-oriented paradigm. Object-oriented analysis consists of three steps. The first step is(71) . It determines how the various results are computed by the product and p

[单选题]试题（71）～（75）Object-oriented analysis (OOA) is a semiformal specification technique for the object-oriented paradigm. Object-oriented analysis consists of three steps. The first step is （71）. It determines how the various results are computed by the pr

[单选题]______is a property of object-oriented software by which an abstract operation may be performed in different ways in different classes．A．MethodB．PolymorphismC．InheritanceD．Encapsulation

[单选题]（ ）iS a property of object—oriented software by which an abstract operation ma)’be performed in different ways in different classes． A．Method B．Polymorphism C．Inheritance D．Encapsulation

[单选题]（）is a property of object-oriented software by which an abstract operation may be performed in different ways in different classes.A . MethodB . PolymorphismC . InheritanceD . Encapsulation

[单选题]In object-oriented(51), objects can be viewed as reusable components, and once the programmer has developed a(52)of these components, he can(53)the amount of new coding required. But(52)a(54)is no simple task because the integrity of the Original sof

[问答题] 简述产品的5个层次。