ECLAP 2012 Conference on Information Technologies for Performing Arts, Media Access and Entertainment

It has been a long history of Information Technology innovations within the Cultural Heritage areas. The Performing arts has also been enforced with a number of new innovations which unveil a range of synergies and possibilities. Most of the technologies and innovations produced for digital libraries, media entertainment and education can be exploited in the field of performing arts, with adaptation and repurposing. Performing arts offer many interesting challenges and opportunities for research and innovations and exploitation of cutting edge research results from interdisciplinary areas. For these reasons, the ECLAP 2012 can be regarded as a continuation of past conferences such as AXMEDIS and WEDELMUSIC (both pressed by IEEE and FUP). ECLAP is an European Commission project to create a social network and media access service for performing arts institutions in Europe, to create the e-library of performing arts, exploiting innovative solutions coming from the ICT

A Model to Enable the Reuse of Metadata-Based Frameworks in Adaptive Object Model Architectures

The Adaptive Object Model (AOM) is an architectural style in which domain entity types are represented as instances that can be changed at runtime. It can be used to achieve higher flexibility in domain classes. Due to AOM entities having a distinct structure, they are not compatible with most popular frameworks, especially those that use reflection and code annotations. To solve such limitations, this study aims to propose a model that enables the reuse of frameworks designed for classic object-oriented domain models in an AOM application. The proposed model uses dynamically-generated adapters for AOM entities that encapsulate them in a class with the format expected by the frameworks. A reference implementation was developed in the Esfinge AOM RoleMapper framework to evaluate the viability of the proposed model. Initially, to evaluate the solution feasibility, a case study was carried out using the Hibernate framework. Further, an experiment was conducted to assess how the participants perceived the framework functionality reuse through the proposed model. The feasibility study revealed that the solution could be applied in a complex setting for the chosen object-relational mapping frame. It raised some difficulties that can be addressed in future studies. In the experiment, the development time did not present a significant difference compared to the competing approach. Despite the considerable learning curve, most participants considered that the proposed approach has more advantages than the alternative. Based on the evaluations, we can conclude that the proposed model can be successfully employed to use AOM entities with frameworks that were not designed for AOM applications. The possibility of reusing existing frameworks can reduce the effort required to adopt an AOM architecture and, consequently, be a facilitator in implementing more flexible and adaptive approaches

Design Patterns in Erasmus

This thesis presents design patterns for the emerging programming language Erasmus that is based on a process-oriented paradigm. We have developed these patterns using the current version of Erasmus, μE, and its corresponding compiler MEC. The design patterns are inspired on some of the patterns presented in the book [GHJV95]. Also, we have followed the elements of documentation templates that appear in that book. The patterns are presented visually; the gures show the high-level structure of the design patterns. Since the tendency of software development is to shift to concurrent and distributed computation, new paradigms are emerging to accommodate this shift. Erasmus is one of these new developing paradigms. We try in this thesis, through developing design patterns for Erasmus, to demonstrate and prove that process-oriented programming is a viable and valid paradigm. We also compare process-oriented programming presented by Erasmus with object-oriented programming in the implementation of the design patterns. We have chosen a set of design patterns that represent the dierent categories that appear in the book [GHJV95] and we tried to preserve the essential concepts of the original designs. However, the designs are not a direct translation of their counterparts in OOP. Rather, the designs make use of the abstraction of POP and nd solutions from within the paradigm itself. That is why in some designs, for one pattern in OOP we have created two or three design patterns in μE