其中套餐模型定义了话单计费的基本要素，确定了基于虚拟测试话单的检测流程以及套餐规则的可视化录入方案；
Package model defined the basic element of telephone bill accounting, confirmed test flow which based on virtual test telephone bill and visual input program of package rules;
对SPC技术的应用进行研究，并讨论从流程的基本要素入手进行流程控制的方法。
The application of SPC is researched, and the method of process controlling based on the factors of process is discussed.
信用管理的三大基本要素是信用征集、信用评估以及信用决策，这三大基本要素构成了信用管理的三个主要流程。
Credit collect, credit risk evaluation, credit decision are three elements of credit management. Also, they are three basis of credit risk management.
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