Learning Objects facilitate reuse minimizing the production cost, saving time and enhancing the quality of educational resources. Authoring tools, digital repositories and e-Learning systems in general often rely on e-Learning standards in order to ensure the reusability and interoperability of the Learning Objects they create, deliver or handle. Ideally, Learning Objects can be combined among them to build more complex ones forming a hierarchy facilitating this way their reusability. However, this process known as authoring by aggregation is still a challenge. This paper presents a model for e-Learning systems to facilitate the creation of Learning Objects by combining and integrating other ones compliant with multiple e-Learning standards. Authoring tools that implement this model will be able to integrate Learning Objects created with different authoring systems or according to distinct e-Learning standards as well as generic web applications. Learning Objects created according to the proposed model can be packaged using e-Learning standards so that they will behave as one single resource in the eyes of the Virtual Learning Environments in which they are integrated. This paper also describes the implementation and validation of the model in a real-world authoring tool.
Learning Objects facilitate reuse minimizing the production cost, saving time and enhancing the quality of educational resources. Authoring tools, digital repositories and e-Learning systems in general often rely on e-Learning standards in order to ensure the reusability and interoperability of the Learning Objects they create, deliver or handle. Ideally, Learning Objects can be combined among them to build more complex ones forming a hierarchy facilitating this way their reusability. However, this process known as authoring by aggregation is still a challenge. This paper presents a model for e-Learning systems to facilitate the creation of Learning Objects by combining and integrating other ones compliant with multiple e-Learning standards. Authoring tools that implement this model will be able to integrate Learning Objects created with different authoring systems or according to distinct e-Learning standards as well as generic web applications. Learning Objects created according to the proposed model can be packaged using e-Learning standards so that they will behave as one single resource in the eyes of the Virtual Learning Environments in which they are integrated. This paper also describes the implementation and validation of the model in a real-world authoring tool. Read More
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