As Internet services rapidly become an essential part of the global infrastructure, it is necessary for the protocols underlying these services to be robust and failsafe. To achieve this goal, protocol developers should be able to design, implement, simulate, visualize, and validate their work in a protocol development environment before deployment in the field. In this paper we describe the EN...

Modelling is a key activity in conceptual design and system design. Through collaborative modelling, end-users, stakeholders, experts and entrepreneurs are able to create shared understanding about a system representation. This paper reports on a literature review to provide an overview of the commonalities and differences in collaborative modelling research. We develop a framework of analysis ...

DiFac is an IST research project (FP6-2005-IST-5-035079) funded by the European Commission within the 6 Framework Programme priority called “Collaborative Working Environment”. The project aims to the development of an innovative Collaborative Manufacturing Environment (CME) for the next generation of Digital Factory in order to support SMEs competitiveness. The paper presents the activity perf...

There is an uptake of organizations’ involvement in collaborative organizational structures (COS). Consistent with the resource-centric views of the firm, we suggest that the COS members need to contribute their managed IT competencies to their COS, whose synergies would create COS IT competencies. We suggest three key IT competencies for COS: proactive top management decision synergy, collabor...

'lhe Policy, Research, and Exterral Affairs Complex distributes PRE Working Papers to dissemninate the findings of work in progress and to encourage the exchange of ideas among Bank suaff and all others interested in development issues. These papers carry the names of the authors, reflect only their views, and should be used and cited accardingly. The findings, interpretations, and conclusions ...

This paper presents a set of mechanisms oriented to incorporate social information into the decision taking of task-oriented 3DIVA. The aim of this approach is to integrate collaborative skills in different character’s roles (seller/buyer, worker, pedestrian, etc.) in order to enhance its behavioral animation. The collective intelligence expected in this kind of multi-character domains (e.g. st...

In this article, a novel CF (collaborative filtering)-based recommender system is developed for e-commerce sites. Unlike the conventional approach in which only binary purchase data are used, the proposed approach analyzes the data captured from the navigational and behavioral patterns of customers, estimates the preference levels of a customer for the products which are clicked but not purchas...

To meet the demand of online collaborative design, a Web-based Collaborative Working Environment (CWE) has been developed. An approach to enhance sustainable furniture design by utilizing the CWE is proposed. In this paper, the CWE framework is briefly presented, which consists of upperware, middleware and resource layers; then three key aspects of sustainable furniture design by utilizing the ...

Recommendation plays an increasingly important role in our daily lives. Recommender systems automatically suggest to a user items that might be of interest to her. Recent studies demonstrate that information from social networks can be exploited to improve accuracy of recommendations. In this paper, we present a survey of Collaborative Filtering(CF) based social recommender systems. We provide ...