面向对象程序复杂性度量层次模型

程序复杂性度量可以实现定量地分析程序复杂性，从而为估计成本提供一个标准。为了度量面向对象程序复杂性，在讨论了度量的定义．度量的理论基础后，提出了一种面向对象程序复杂性度量的层次模型。该模型分成5个层次：系统层、类簇层、类继承树层、类层和方法层，每个层次都有自己的度量方法。采用这种分层度量模型的好处是：它是一个框架，各度量方法归属到各层中；各层之间相互独立；一层中方法的修改并不影响其它层。

Hierarchy model of object-oriented program metrics

A complexity metrics of a program can be used to analyze quantitatively the complexity of a program; therefore, the cost of a program can be estimated. In order to measure the complexity of an object-oriented program, a hierarchy model of object-oriented program complexity metrics is proposed after the definition of metrics and fundamental theory are discussed. The hierarchy is divided into 5 layers: system layer, class cluster layer, class hierarchical tree layer, class layer, and method layer. Different metrics methods are needed for different layers. The benefits of a hierarchy model consist of the following: it is a framework with different metric methods in different layers; the layers are independent from each other, the modification of a layer does not affect the other layers.