Template methods can be provided by the implementer, who must not forget that the superclass can potentially have implemented its template methods.

模板方法可以由实现者提供，但必须注意的一点是超类有可能已经实现了其模板方法。

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Having this kind of deliverable makes it easier for a company to evaluate the success of its CRM system and for the implementer (me) to do the project.

FORBES: The Secret To Successful CRM