The focus of this paper is the transformation of conceptual data models (such as ER, NIAM, PSM) to object-oriented databases. This transformation is captured within the framework of a two level architecture. Conceptual models are rst mapped to abstract intermediate specii-cations, which are then transformed to database schemas in a given object-oriented database environment. This enables us to ...

In 1999, the multidisciplinary Tavistock group prepared a generic statement of ethical principles to govern health care systems. This paper elaborates on these principles in two directions. First, it develops a set of quality standards, based on ethical principles, intended to regulate health care delivery and service management. Second, it focuses them on 'publicly oriented' (not necessarily g...

Existing IEEE software reliability standards do not address the characteristics of distributed systems, including client-server systems. Furthermore, these standards were issued before the widespread application of COTS and safety-critical systems. In addition, these standards do not take into account the influence on reliability of such process improvement measures as inspections, reuse, and o...

Nowadays, the growth in the field of information processing and wireless data transmission for any wireless system is in its peak.For designing the quality oriented system, evaluation of the two routing protocols under IEEE 802.11 standards has been done. The performance is evaluated in terms of the end-to-end delay and throughput The AODV and MAODV routing protocols are implemented for both th...

As the Internet emerges as a new venue for many business activities, a new organizational form called virtual communities has emerged and rapidly spread out across the entire sector of industry to take advantage of the efficiency of communications technologies. In the knowledge era, such online communities are increasingly being regarded as a cyberspace in which individuals and organizations ca...

Prescriptive process-based safety standards (e.g. EN 50128, DO-178B, etc.) incorporate best practices to be adopted to develop safety-critical systems or software. In some domains, compliance with the standards is required to get the certificate from the certification authorities. Thus, a well-defined interpretation of the processes to be adopted is essential for certification purposes. Current...

The GeoWebAgri-project evaluates the use of spatial data in precision farming tasks. A service-oriented spatial data infrastructure working with standards could identified as optimal environment for the users’ needs. Using standards of OGC, ISO and W3C help to increase the functionality, usability and accessibility of spatial based applications in agriculture.