An important contemporary fact is the advent of Web 2.0, mainly characterized by the possibility of content being produced collaboratively, empowering and enabling the concept of collective intelligence. Another important feature is the popularity of virtual communities, which allow people around the world to exchange information and experiences. In order to increase the potential for reuse and sharing of interactive content, this paper proposes an architectural model for a software platform that enables the online production and execution of virtual reality applications as well as sharing of interactive content. The remote online environment, associated with the capacity to represent and store 3D interactive content, enables the sharing and reuse of such content in the production of virtual reality applications. The paper we present the description of the main elements of the proposed architectural model and results of the research. The results point to the feasibility of the proposed model.

The adoption of object-oriented (OO) framework approach can increase the reuse in software development. To reach this goal, however, a high quality OO framework design is needed. Moreover, an OO framework must be used in a proper way. General principles are proposed for OO framework design and use, but it is difficult to evaluate OO framework design and OO framework use in an objective way. This work proposes metrics for quantifying features of OO frameworks and software developed using them. They are useful for evaluating OO framework use and learning how to use it, using statistical comparison with present software based on specific OO frameworks. Additionally, the metrics produce a feedback for OO framework developers. A set of tools developed for automatic gathering and for browsing this kind of information is presented, as well as experimental results.