Grid computing evolves toward an open computing environment, which is characterized by highly diversified resource providers and systems. As the control of each computing resource becomes difficult, the security of users¡¯ job is often threatened by various risks occurred at individual...

Economies in knowledge-based societies grow faster than in previous agricultural and industrial societies. This growth is based on the information and communications technology (ICT) development. The production function of ICT industries shows increasing returns to scale. The network effect of...

Utility computing services constitute business opportunities in the customer-to-customer (C2C) marketplace. Providers deal with the risks and uncertainties faced by users while transacting with unfamiliar counterparts. Ensuring trustworthy transactions among unfamiliar users is an important...

The digital economy is one of the most important features of the knowledge-based society of the future. Based on information and communications technology (ICT), it grows faster than and eventually overtakes the traditional industrial economy. The fundamental driving forces of the digital...