To demonstrate this architecture at work we are going to implement a sample use case - Purchase Item which defines a simple process flow.
为证明这一架构的工作情况，我们将实现一个简单的用例——购买物品(Purchase Item)，它定义了一个简单的流程流。
Because ConAgra felt the product would be an impulse purchase, it was important to make the item stand out in the freezer case.
因为康尼格拉集团认为这个产品会是一种冲动消费，所以让其在冷冻餐里脱颖而出非常重要。
Users of the app can set standard criteria for their searches, such as the condition of the item and seller feedback, limiting search results to just those items they might purchase.
程序的用户可以定制他们的搜索标准，例如物品的状况和出售者的反馈，以将搜索结果缩小到他们可能会购买的范围内。
The example in Listing 9 parses the shopping cart XML file and generates a bill with the individual item totals and the sum total for the purchase ( Listing 10).
清单9解析这个购物车XML文件并生成一个账单，该账单显示项目合计和采购总计（见 清单10）。
The message body for the queue item is an XML document that contains the purchase order.
队列项的消息体是一个包含购买订单的XML文档。
The right to access the new content could be listed as a catalog item external to the game for the gamer to purchase.
访问新内容的权利可以实现为游戏外产品目录中的一种商品，玩家可以购买这种商品，就像购买门票一样。
For example, a customer wants to purchase an item that is above his or her credit limit.
例如，一位客户想要购买超出其信用额度的物品。
Although you can effortlessly purchase an item on credit the minute you want it, it's better to wait until you've actually saved up the money.
尽管你一想要一样东西时就可以毫不费力地透支购买，但是最好还是等到你存够了钱再买。
This will prevent you from making impulse purchase, and help you to avoid return trips to the store because you forgot an item.
这样可以防止你即兴购买，也可以帮你省下因为遗忘而忘返商店重新购买的路费。
To widen that interval, select the Items for Purchase label and press the down-arrow key on your keyboard to move the item to its proper location.
为了扩大这个间隔，选择itemsforPurchase标签并按下键盘上的向下箭头键将该项目移动到它的正确位置。
Item: Lists all the items in the purchase order.
Item：列出购买订单中的所有产品。
The site, which estimates its unique monthly audience at around 10 million people, earns revenue as a percentage of sales when consumers click on a photo and purchase the related item.
该网站通过消费者点击照片购买相关物品来获得一定百分比的盈利，而据测评每月该网站拥有接近一千万的浏览量。
Finally, you must delete the purchase order queue item from the Amazon SQS queue.
最后，您必须从Amazonsqs队列删除购买订单队列项。
So last month Swoopo began letting failed bidders purchase the item they wanted at a discount equivalent to the amount they spent bidding.
因此上个月，Swoopo开始让流标者打折购买其想要的物品，折扣价相当于其在竞标上花的钱。
StyleSpot earns revenue as a percentage of sales when consumers click on a photo and purchase the related item.
当消费者点击照片并购买相关商品的时候，StyleSpot就能从销售额中得到一部分的提成。
In other words, a purchase order containing a line item with a four-digit number in the Quantity element would be considered invalid.
换句话说，购买订单中的条目如果Quantity元素是四位数字，则认为是无效的。
Suppose you want to reuse the example above and add another operation that updates the product inventory, decreasing the product quantity for each item in the purchase order.
假设您想重用上面的例子，并加上一个更新产品库存，即减去购物订单中每项产品的产品数量的操作。
This form of bead shopping will enable the purchase to buy as many single beads as are required in order to make a personal item of jewelry or other beaded item.
这种形式的珠子购买方式可以使购买者想买多少珠子，以便于定制个人珠宝首饰或其他镶嵌珠宝的物件。
For example, with an online purchase, you want to store not only the item lines but also the total amount, because the buyer has approved the total amount.
比如，对于在线购买，需要存储的不仅仅是每个产品行，还包括总价格，因为买主已经认可了总价格。
For example, someone shopping at a supermarket might weigh the cost of an item and the quality to decide whether or not to purchase it.
比如，有人到超市买东西，他可能会衡量物品价值和质量，后作出决定是不是要买这件东西。
One future work item of the purchase order application is to follow exactly the rules laid out in this profile.
订单应用程序将来的一项工作是严格遵守这个概要文件中展示的规则。
First and foremost, a home is generally the most expensive item you will purchase in your lifetime.
首先，一般而言房子是你一生当中购买的最贵的东西。
Once an item has movedout of the design phase, customers may continue to follow themanufacturing and logistics process until they can purchase the itemthey voted for shortly afterwards.
一旦家具设计完成，顾客可以跟进家具制造与物流过程，直到投票后的买卖过程。
Most stores will adjust the price of a previous purchase if the item was marked down within a certain time from when it was bought.
大部分的商店都会在物品售出后的一定时间调整一件物品的价格。
Most stores will adjust the price of a previous purchase if the item was marked down within a certain time from when it was bought.
大部分的商店都会在物品售出后的一定时间调整一件物品的价格。
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