Today's economic crisis has led to bankruptcy of many successful, but usually large-sized enterprises. This brought into question the future of large-sized enterprises. However, the only alternative to largesized enterprises (LEs) is networking of small and medium-sized enterprises (SMEs) into Regional Production Networks (RPNet). RPNet is non-hierarchical organizational form in which every SME...

Recent commercial virtual reality shows have become very demanding in terms of interactive credibility and visual realism. In an effort to push further the immersive quality and the sense of 'being there' in the most recent VR production of the Foundation of the Hellenic World “A Walk through Ancient Olympia”, the user, apart from virtually visiting the historical site, becomes an interacting p...

The present manufacturing sectors are burdened with increasing speed of transitioning new global business developments into production processes. This forces the old approaches of information management to adopt better evolution capabilities. Although the concept of virtual manufacturing is to facilitate integration of production processes in global industrial organizations, its information man...

The current generation of Grid infrastructures designed for production activity is strongly computing oriented and tuned on the needs of applications that requires intensive computations. Problems arise when trying to use such Grids to satisfy the sharing of data-oriented and service-oriented resources as happens in the IVOA community. We have designed, developed and implemented a Grid query el...

with the advent of cyberspace and development of data and information, virtual cities were presented as new forms of city management in different layers and territories. historic and tourism virtual city are among eight types of virtual cities. in this article some guidelines were presented in order to design and manage them based on tehran tourists' need assessment. theoretical framework ...