Modeling the wear of digital object

虽然我们可能没有意识到，但磨损是我们日常生活中真实的重要信息来源。通过磨损，我们对物品的使用历史可以感知到，并为我们正在做的任务提供信息和支持。在这项研究中，我们开发了一种技术，可视化的历史桌面对象使用物理磨损效果。虽然在真实的世界中，文档和文件夹通常在被重复使用之后变得模糊或被撕掉，但是现有GUI系统中的文档和文件夹图标从不随着相应数字对象的使用而改变它们的外观。在真实的办公环境中，穿戴始终是支撑办公人员日常工作的重要信息来源。例如，为了找到经常提到的文档，他/她可能会自然地首先引导他/她的手拿起相对磨损的文件夹，因为文件夹的频繁使用往往会使其变脏和变脏。此外，为了找到最近使用的文档，工作人员将不检查覆盖有重灰尘的文档堆，并且为了搜索最近创建的文档，他/她将跳过那些纸张已经劣化的文档。因此，通过使文件和文件夹图标根据它们的历史改变它们的外观，用户能够感知和使用GUI上的磨损的示能表示，并直接导入他们在真实的世界中使用磨损的先验知识，以有效地与文件和文件夹交互。为了获得更真实的磨损图像，我们还开发了几种用于模拟纸张风化的技术。

Although we may not be aware of it, wear is a real important source of information in our everyday life. Through wear, histories of our use of items are perceptually available to us in ways that inform and support the task we are doing. In this research, we developed a technique for visualizing the history of desktop objects using physical wear effect. While in the real world, documents and file folders usually getting smudged or torn out after being repeatedly used, the document and folder icons in an existing GUI system never change their appearance with the use of the corresponding digital objects. In the real office environment, wear is always an important source of information supporting the daily tasks of office workers. For examples, to find a frequently referred document, he/she may naturally lead his/her hand to pick up a relatively worn file folder first, as the frequent use of the folder tend to make it smudged and soiled. Also, to find a recently used document, a worker will not check the stack of documents covered with heavy dust, and to search for a recently created document he/she will skip those documents whose papers are already deteriorated. Therefore by making the file and folder icons change their appearance according to their history, the user is able to perceive and use the affordance of wear on the GUI and directly import their prior knowledge of using wear in the real world for effectively interacting with files and folders. To achieve more realist images of wear, we also developed several techniques for modeling the weathering of paper.