The development and use of ontologies may require users with no training in formal logic to handle complex concept descriptions. To aid such users, we propose a new visualization framework called “model outlines”, where more emphasis is placed on the semantics of concept descriptions than on their syntax. We have conducted a usability study comparing model outlines and Manchester OWL, with resu...

Replication is a technique that allows the construction of applications ensuring normal execution regardless of the mobile users’ connection state. To satisfy application-specific requirements as well as different computing environment constraints, both replica management and connection/disconnection processes should be adaptable. This paper presents how reflective features can be used to meet ...

In this study we compare product development strategies and practices of five companies in the durable goods industries: one each in the United States (equipment), Sweden (aerospace), Germany (electric motors), Hungary (transportation equipment), and Japan (business machines, cameras/video). In particular, we focus on the concept development phase of new product development and the attend to th...

We consider a Morse function f and a Morse-Smale gradient-like vector field X on a compact connected oriented 3-manifold M such that f has only one critical point of index 3. Based on Laudenbach’s ideas [1], we will show that the flow of X can be isotoped into one so that the trajectory spaces of the new flow provide a stratification for M . We will construct ”natural” tubular neighborhoods abo...

Replication is a technique that allows the construction of applications ensuring normal execution regardless of the mobile users’ connection state. To satisfy application-specific requirements as well as different computing environment constraints, both replica management and connection/disconnection processes should be adaptable. This paper presents how reflective features can be used to meet ...

Bringing new users into grids is a top priority for all grid initiatives and one of the most challenging tasks. Especially in life sciences it is essential to have a certain amount of users to establish a critical mass for a sustainable grid and give feedback back to the technological middleware layer. Based on the presumable lack of grid IT knowledge it is notably more arduous to satisfy user ...

The library construction level is an important indicator of society civilization improve degree, is an important position for building a learning society, is the hall for people cultivate sentiments and increase learning knowledge, is an important basis for the construction of public cultural service system facilities, is an important way for all levels of government to protect their cultural r...

Digital item transaction is one of broadband-networked society outcomes. Digital item refers to digital image belongs to Massively Multiplayer Role-Playing Online Games (MMRPOG). Digital item transaction has been explosively increased for the past two years especially in Korea and similar transaction increase has been noted in the U.S and other highly networked countries. Whether or not to reco...