Now that only one person in the picture fits the characteristics he learned, he is fairly sure that he will be able to identify the girl again, even if the scene the tester shows him next week is slightly different.
注意：图片中只有一个人符合他记住的特征，所以，即使测试者下周展示的场景稍有不同，他也相当肯定能够再次识别出这个女孩。
Since he still has a few moments left to look at the picture, he attempts to notice other, more subtle differences between the child he is supposed to remember and the others in the picture—just in case.
由于还剩下一点看图片的时间，因此，只是为了以防万一，Jonny 试着注意自己应该记住的这个孩子与图片中其他孩子之间更细微的差别。
If the two similar children in the picture appeared to be identical twins, Jonny might also take note of some less permanent feature of the child, such as the child's position on the picnic blanket. That would enable him to identify the child if he were shown another picture in which the children were sitting on the blanket in the same order.
如果图片中两个相似的孩子看上去像一对双胞胎，那么 Jonny 还会记下这个孩子的一些不那么永久的特征，如这个孩子在野餐毯上的位置。这样，如果向他展示的另一张图片中，这些孩子仍按相同的顺序坐在毯子上，他也能够识别出这个孩子。
QuickTest uses a very similar method when it learns objects during the recording process.
QuickTest 采用了极为类似的方法，以便在录制过程中记住对象。
First, it "looks" at the object on which you are recording and stores it as a test object, determining in which test object class it fits. Just as Jonny immediately checked whether the item was a person, animal, plant, or thing. QuickTest might classify the test object as a standard Windows dialog box (Dialog), a Web button (WebButton), or a Visual Basic scroll bar object (VbScrollBar), for example.
首先，它将“观看”您要录制的对象，然后将其作为测试对象进行存储，确定该对象符合的测试对象类。正如 Jonny 会立即检查项目是人、动物、植物还是东西，QuickTest 也会对测试对象进行分类，例如，标准 Windows 对话框 (Dialog)、Web 按钮 (WebButton) 或 Visual Basic 滚动条对象 (VbScrollBar)。
Then, for each test object class, QuickTest has a list of mandatory properties that it always learns; similar to the list of characteristics that Jonny planned to learn before seeing the picture. When you record on an object, QuickTest always learns these default property values, and then "looks" at the rest of the objects on the page, dialog box, or other parent object to check whether this description is enough to uniquely identify the object. If it is not, QuickTest adds assistive properties, one by one, to the description, until it has compiled a unique description; like when Jonny added the hair length and color characteristics to his list. If no assistive properties are available, or if those available are not sufficient to create a unique description, QuickTest adds a special ordinal identifier, such as the object's location on the page or in the source code, to create a unique description, just as Jonny would have remembered the child's position on the picnic blanket if two of the children in the picture had been identical twins.
然后，对于每个测试对象类，QuickTest 都有一个始终要记住的强制属性的列表，类似于 Jonny 在看到图片之前计划要记住的特征的列表。当您录制对象时，QuickTest 始终记住这些默认的属性值，然后“视图”页面上其余的对象、对话框或其他父对象，以检查该描述是否足以唯一标识该对象。如果不足以进行唯一标识，QuickTest将向该描述中逐项添加辅助属性，直到经过编译成为唯一的描述为止，就像 Jonny 向他的列表中添加头发的长度和颜色特征一样。如果没有可用的辅助属性，或者那些可用的辅助属性仍不足够创建一个唯一的描述，QuickTest 将添加一个特殊的顺序标识符（例如页面上或源代码中对象的位置）以创建唯一的描述，正如图片中的两个孩子是一对双胞胎时，Jonny 要记注孩子在野餐毯上的位置一样。
文章来源于领测软件测试网 https://www.ltesting.net/
