Jose G Urzaiz’s scientific contributions

The problem we address is the lack of Quality of Service (QoS) warranties for a course developed by means of a Recommender System. The proposed approach is to generate executable code at development time for each Learning Object and store it as a new type of metadata in the repository. This executable code should be installed at implementation time and would help to achieve the QoS requirements for each Learning Object connection. An architectural model is proposed (we call it the "Virtual-Quality-of-Service-Network (VQN) model"), consisting on the addition of a QoS layer which is responsible for implementing a client-server meta-routing function.. A high-level design of the software prototype is also provided.

With the purpose of make it easier the construction of educational contents to be disseminated on the Web, have emerged environments or platforms (LMS) that provide tools to meet this target and facilitate the creation of schemes of interaction similar to those existing in the real world (observation, experimentation, analysis, synthesis, etc.). However, most of the platforms include basic elements of content that are modelled on their own ways and cannot be exploited outside their environment. To try resolving this situation, standards as SCORM allow sharing content elements with Learning Objects, which are supported by an incomplete form by these platforms. This article proposes a model that automates these processes through an architecture based on services. We think that the Learning Object composition process is makeup for a collection of activities: search and identification, transform, sequencing, packaging and distribution. In our model there is a service for each component of the model.