The cycle of the value pursuit in customer life also forms value chain cycle of Customer Lifetime Value.

周而复始的顾客生活活动的价值追求，又形成顾客生涯循环消费价值链。

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However, many enterprises currently neglect this work and customer life cycle value assessing model is difficult to be used in practice, though perfect in theory.

目前企业在这方面的工作有很大的不足，而且现有的客户生命周期价值评价体系虽然在理论上可以实现对客户资源价值的评价，但实际操作困难。

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