可复用设计不仅应该对当前的问题有针对性，同时对将来的问题和需求也要有足够的通用性。
Reusable design should be specific to the problem at hand but also general enough to address future problems and requirement.
流程元素是一种定义流程段的构件资产，在BP模型中，这种流程段被设计为可复用的构件来管理。
A process element is an artifact asset that defines a segment of a process which is designed and managed to be reusable within BP models.
弊：这种方案在设计每张报表和在进行可复用的开发时，都需要额外的代价。
Con: This approach requires additional effort when designing individual reports and additional reusable development.
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