DLI-Phase 2: A Digital Library of Reusable Science and Math Resources for Undergraduate Education

这个为期两年的项目的主要目标是建立一个可重复使用的本科生科学教学材料的功能数字图书馆，并将该图书馆作为一个试验台，以解决数字图书馆发展和使用中的几个重要研究问题。该项目代表了COLLEGIS研究所(CRI)、教学管理系统(IMS)项目、北卡罗来纳大学威尔明顿分校(UNW)、ACM SIGGRAPH教育委员会数字图书馆(SECDL)、组成计算机科学教学中心(CSTC)的机构和EDUCAUSE之间的合作。图书馆的内容包括最初来自合作成员的各种本科生科学教育资源。这些小组提供的高质量数字资源范围从原始资料，如数据集和图像，到Java小应用程序和可视化工具，再到复杂的模拟和结构化的课程片段。它们还涵盖了从地球科学到纯数学的广泛学科。该图书馆正在采用正在创建的IMS标准，以独立于平台、可重复使用的方式表示教学和学习材料。具体地说，正在使用IMS元数据来描述库内容，以便为IMS标准提供试验台。正在根据需要扩展IMS元数据，以涵盖正在标记的各种材料。该项目的主要任务是建造名为XXDL的图书馆的初始版本，将项目合作伙伴的各种内容纳入图书馆，建立对资源进行独立编目和审查的程序，并扩大图书馆用户群体。第二年的主要任务包括对XXDL的有效性进行广泛评价，以及更有针对性地调查使用标准化IMS元数据标记数据的作用、成本和效益。人们的期望是，IMS应该提供更好的索引，因为它是专门为描述教学和学习内容而设计的，而且标准的使用应该确保所有内容编目人员对不同的学习资源应用统一的描述性模式。预计XXDL用户将受益于拥有强大和可预测的工具，以便找到适当的学习和教学材料。除了提供IMS元数据的“压力测试”之外，该项目还应该有几个额外的广泛影响。它直接使使用图书馆开发改进的数字课程材料的本科生理科教师受益。它还帮助教师创建协作社区，以共享和重复使用学习资源。XXDL的评估帮助图书馆开发人员了解如何设计更有效的数字图书馆和在线社区，鼓励重复使用学习材料和合作。XXDL试验台可用于未来数字图书馆问题的重点调查。

The main objectives of this two-year project are to build a functioning digital library of reusable instructional and learning materials for undergraduate level science and to use the library as a testbed to address several important research issues in the evolution and use of digital libraries. The project represents a collaboration between the COLLEGIS Research Institute (CRI), the Instructional Management System (IMS) Project, the University of North Carolina at Wilmington (UNCW), the ACM SIGGRAPH Education Committee's Digital Library (SECDL), the institutions that comprise the Computer Science Teaching Center (CSTC), and EDUCAUSE. The library content includes diverse undergraduate science-education resources coming initially from the members of the collaboration. The high quality digital resources provided by these groups range from primary source materials, such as datasets and images, to Java applets and visualization tools, to complex simulations and structured curriculum fragments. They also span a wide range of subjects from Earth sciences to pure mathematics. The library is adopting the IMS standards being created to represent instructional and learning materials in a platform-independent, reusable way. Specifically, library content is being described using IMS metadata to provide a testbed for the IMS standards. The IMS metadata is being extended as necessary to cover the diverse material being tagged. The main tasks of the project are to construct an initial version of the library, called XXDL, to incorporate the diverse content of the project partners into the library, to establish the procedures by which the resources are catalogued and reviewed independently, and to grow the library user community. The main tasks of the second year include a broad evaluation of the effectiveness of the XXDL and a more focused investigation of the roles, costs, and benefits of using the standardized IMS metadata for tagging the data. The expectation is that IMS should provide superior indexing because it has been designed expressly to characterize instructional and learning content and because the use of standards should ensure that all content catalogers apply a uniform descriptive schema to diverse learning resources. It is anticipated that XXDL users will benefit by having powerful and predictable tools with which to find appropriate learning and instructional materials. In addition to providing a "stress test" of the IMS metadata, the project should have several additional broad impacts. It directly benefits undergraduate science faculty who use the library to develop improved digital course materials. It also helps faculty to create collaborative communities to share and reuse learning resources. The evaluation of XXDL helps library developers understand how to design more effective digital libraries and online communities that encourage reuse of learning materials and collaboration. The XXDL testbed can be used for future focused investigations of digital library issues.