CELTS-3：学习对象元数据规范(国外英文资料).doc

CELTS-3：学习对象元数据规范(国外英文资料) CELTS -3: learning object metadata specifications What is the learning object metadata The object of learning is the object that can be used for teaching and training purposes, such as laboratory equipment, textbooks, etc. It can also be digital: such as teaching software, network courseware, etc. The learning objects granularity is also small, small to a picture, large to a course, which is within the scope of the learning object. Typical learning objects include multimedia content, teaching content, teaching goals, teaching software and tools, people, organization and so on. Learning objects in different teaching system is used, reuse, or references, including the training system based on computer and interactive learning environment, intelligent computer assisted instruction system and so on. Metadata is data about data that describes the properties of the data. The learning object metadata is used to describe the properties of the learning object, such as the name, format, teaching purpose, and so on. If you now view the learning object metadata specification as a learning object, here are some of its typical properties, namely metadata: The title Celts-3.1 learning object metadata specification (LOM) describe The specification defines a conceptual data model that defines the structure of the learning object metadata instance. For this specification, the learning object consists of all entities, whether numeric or non-numeric, as long as they are used for learning, education, or training. The keyword Learning objects, metadata gong offer those role The author entity Unit: tsinghua university press Address: computer department of tsinghua university in Beijing Tel: 010801 Email: sznpn@263.net The date of On December 15, 2001 The size of the 318976 byte Learning resource type Descriptive text Using the environment University degree ... ... The role of learning object metadata is: * the user can not operate under the condition o