Models are purposeful abstractions used in todays software engineering processes. Experience shows that the application of models reduces engineering costs, allows for easy reuse, and improves product quality. Models can be used for several purposes at various levels of abstraction. In this paper, we discuss the differences of system models and test models. For that, we consider several aspects...

We describe the design of PIRS, a peer-to-peer information retrieval system. Unlike some other proposed approaches, PIRS does not require the centralization of data onto specially designated peers. It is therefore applicable to a larger environment. We explain our design decisions, analyzing its benefits and potential shortcomings. We then show that PIRS significantly improves over search perfo...

there are many approaches in economic literature for investigation of firm performance. in general, those theories very useful for investigation the nature and role of competitive advantage. resource based view, dynamic capability, entrepreneurial theory, neoclassic theory, industrial organization approach are some of those theories. todays, banks try to attract customers through various new me...

Grid Replica systems are gaining foothold in real end user systems, and are used in an increasing number of large scale projects. As such, many of the properties of these systems are well understood. This paper how to handle some minor shortcomings of todays data replica systems, in respect to consistency management, and to their ability to handle derived data sets. We think that both features ...

The impact of results from Information Theory on todays information technology is illustrated by means of derivations from capacity formula and chain rule. By this, the huge possible increase in power and bandwidth efficiency for transmission of analog source signals via modern digital communication techniques is enlightened. The foundations of modern approaches like OFDM, CDMA, coded modulatio...

Todays computational grids are used mostly for batch processing and throughput computing, where jobs are submitted to a queue, processed, and finally delivered for post-mortem analysis. The glogin tool provides a novel approach for grid applications, where interactive connections are required. With the solution implemented in glogin, users are able to utilize the grid for interactive applicatio...

There is an acute problem concerning lymphoma treatment in Ukraine. Previously, due to unavailability of up-to-date chemotherapy (CT) regimes, only 20% of lymphoma patients had a chance for persistent remission after the treatment, 4060% of patients had response to treatment and only 35% of patients had 5-year survival rates. Todays clinical protocols of therapy in lymphoma patients take into a...

The marketing landscape is quickly changing, with conventional giving place to digital or electronic marketing. Businesses must recognize the new paradigm, which emphasizes customer relationship and thus helps create retain loyal customers. Consumers are more trustworthy when they receive information in form of content able interact brand. To establish effective campaigns, an organisation first...

Although homeopathy have been discovered 230 years ago by Dr Samuel Hahnemann but only scientific view has begun only since 25 years. Currently homeopathy has been integrated into the national health care systems of many countries, including India, Mexico, Pakistan, Sri Lanka, and the United Kingdom. In the World Health Organization report about alternative medicine that published in 2001, we n...