The use of Information Technologies in government (or e-government) has evolved during the last few years to make the interactions between government and citizens (G2C), government and businesses (G2B), and inter-agency relationships (G2G) more effective, democratic and transparent [1,6,8]. Moreover, in the most recent years we have observed two important trends with an impact in all these inte...

Due to globalization of business and flourishing of various forms of e-marketplaces, organizations are coming out from the arm-length partnership of supply chain model and rely more on open architecture e-procurement model. If the purchaser depends more and more on e-marketplace, he is entering more and more in the risk zone though he is availing transaction benefit, because probability of gett...

In current era, the involvement of technologies like virtualization, consolidation and cloud computing, and adoption of free and open source software in designing and deploying e-governance that can reduce the total cost associated with and hence the financial burden abide by the state and central governments. The success of any egovernance project depends upon its utilization by the intended g...

Let G = (V,E) be a locally finite graph, i.e. a graph in which every vertex has finitely many adjacent vertices. In this paper, we associate a topology to G, called graphic topology of G and we show that it is an Alexandroff topology, i.e. a topology in which intersec- tion of every family of open sets is open. Then we investigate some properties of this topology. Our motivation is to give an e...

Open-source software (OSS) is one of the hottest trends in terms of the software development in the current days. It is highly discussed if this is the best model for software creation when compared to non-open-source alternatives, and most of the times this discussion is mostly driven by passion than by facts. The main rational behind this paper is to discuss the opportunities and challenges t...

Technologies and approaches in the field of Electronic Commerce are not mature enough in order to allow for their broad successful commercial application. Neither existing, successful approaches that are very much restricted to large companies, specific branches, and business domains, nor approaches just merging new technologies like Internet, WWW, and XML allow for scaling up electronic commer...

Ontology languages like OWL allow for semantically rich annotation of resources, such as products advertised at an electronic online marketplace, while the Description Logic (DL) formalism underlying OWL provides reasoning techniques to perform matchmaking on such annotations. We identify peculiarities in the use of DL inferences for matchmaking which are due to the open-world semantics of OWL,...