In the data object model approach, you need to first create the wrapper objects to encapsulate the customer and order data, as shown in Listing 1, Listing 2, and Listing 3.

按照数据对象模型方式，首先需要创建包装器对象来封装客户和订单数据，见清单1、清单2和清单3。

youdao

To exhibit a proactive approach to customer and display total commitment in putting the customer first.

帮助客户解决问题，满足客户需要，实现客户第一的承诺。

youdao

Blank was the first to articulate customer development as a disciplined approach to building companies.

FORBES: Steve Blank Introduces Scientists To A New Variable: Customers