2. Realization of RLO Model Construction - Packaging
Content packaging refers to the Content Packaging Specification (CP) in IMS. Content packaging defines a standard data structure that can be used to exchange the content of learning objects so that they can be easily input, output, merged, or split. The core idea is to separate the actual physical resources from the logical organizational structure. Therefore, in order to implement the RLO build model, we must package it. According to the previous standard discussion, a courseware package can be a ZIP archive or a CD. Each learning resource or package that can be exchanged in the LMS has a content list document in the root directory of the package. The content list document contains the metadata information of the learning object; the resource part directly refers to the storage address of the physical file: the organization structure information describes the relationship between these resources. A content list file that can describe a courseware. It can also describe one lesson in the courseware. The granularity of its description can be changed according to the actual user's needs. According to the hierarchical relationship between RLO and RIO. We designed a corresponding content packaging information model example, as shown in Figure 4 (this example describes: A CAI courseware describes two learning points of the learning object and learning content management system. When speaking about learning objects, mainly from the learning object The basic introduction, nature, and its internal elements, RIO, are described: When it comes to learning content management systems, it is mainly described by the definition and characteristics of the learning content management system and the internal structure.
As a kind of reusable teaching resource component, RLO is gradually attracting the attention of the international educational technology community. At the same time, as a new generation of online education solutions, LCMS is moving from conceptual development to practical application. In-depth study of the construction of RLO elements in the LCMS environment provides us with broad prospects. This article is based on the background of the development of online education, based on the existing network education technology standards, researching the construction model design of RLO under the LCMS environment so as to realize the sharing and reuse of network education resources.
The RLO model study aims to provide instructional designers and content producers with a flexible strategy for creating learning objects. LCMS has four basic components: learning object library, production tools, and dynamic publishing interface. Management software. The learning object library as a core component of LCMS makes an important contribution to the operation of LCMS. The internal structure of RLO in RLOR is deeply discussed, and the structural elements of RLO are fully constructed. Then the RLO model is packaged and bound according to LOM standard and CP specification and XML language, and the design of this model is basically implemented. This ensures shared reuse of resources and interoperability between systems.
(Author/Winter  Zhou Yanhong 
 School of Information Science and Engineering, Yanshan University  Department of Computer Science, Hebei Normal University of Science and Technology)
Source of information "Electrification Education Research"
Automatic Weighing Machine,Automatic Filling Machine,Liquid Filling Machine
Ungrouped,Packaging Machine Co., Ltd. , http://www.nssealingmachine.com