Designing IT Systems Research Articles

Real Time Enterprise as a Platform of Support Management Systems

Abstract The current, fast market changes require enterprises to dynamically adapt the way they conduct their business. This poses many challenges for information technology. Market requirements for immediate response to business changes became the basis of the idea of a real-time information processing (RTE) company. RTE provides real-time information to employees and business partners. Integrated IT systems supporting management constitute a common platform – the foundation of a real-time enterprise. The aim of the article is to present the basic problems of building an IT system that is the basis of a real-time information processing (RTE) company. It is a summary of our work on this type of system. The article justifies the thesis about the need to build a system for the RTE's requirements and the conditions of its implementation. Such a system is designed to provide employees and business partners with the information they need in real time. The use of integrated systems such as ERP, CRM, SCM, and so on provides the ability to implement the main business processes of a real-time enterprise. The article presents both literature analysis and the characteristics of own work on designing IT systems for RTE. Particular attention was paid to the analysis of success factors (determinants) in system design and the use of MUST methodology (MUST is a Danish acronym for theories of and methods for design activities). The final part of the article presents a proposal for further work on IT systems for RTE in the context of existing trends such as DARQ technology (Distributed Ledger, Artificial Intelligence, Extended Reality, Quantum computing).

Threat or opportunity? The future of library services in the light of technological innovations

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Flow Aggregation for Energy-Aware Ad-Hoc Wireless Networks Respecting QoS Provisions

Emerging communication technologies are now leading developers to design IT systems taking into count their energy-related considerations. Much research performed in the area of ad-hoc wireless networks tends to distribute the flows over all nodes of the network, which increases the amount of energy consumed by each node and reduces longevity of the network. To overcome these problems, this paper seeks to aggregate a set of flows within a number of nodes that is as low as possible in order to be capable of routing those flows. This proposal allows to maximize the number of network nodes that may be turned off. The proposed solution was formulated as an integer linear programming (ILP) problem using a set of energy and quality of service (QoS) constraints. This formulation minimizes the total energy consumed by the nodes to construct a topology network that is capable of meeting QoS requirement for a set flows inserted into the network. To evaluate the efficiency of the proposed model, a performance-based comparison was conducted with another routing model. The simulation results show that the proposed model offers better performance in terms of global energy consumption and network load

Designing IT systems according to environmental settings: A strategic analysis framework

In the past, IT system design is mainly driven by two essential factors: technical merits and costs. Environmental consideration only emerges in most recent discussions under the label of green IT. As the evaluation of environmental and climate impact involves too many parameters, some of which are indirect and hidden, it is very hard to make rationale analysis without the support of a holistic strategic analysis framework. In this paper, we propose to extend the goal-oriented requirements modeling language, GRL, to model the rationality behind IT system design, in particular, how the environment related considerations come into play in such design decision making. It can be adopted as a strategic analysis framework to facilitate concrete decision makings under different environmental settings. Example real world scenarios are used to illustrate how the proposed approach can help improve the state of the practice.

Megatrends or megamistakes? What ever happened to the information society?

Abstract Most discourse about computers in the media and in the information technology (FT) industry is Utopian, yet there is a growing body of literature pointing to the lack of social transformation arising from computerization. This paper reviews the evidence for and against social transformation in terms of (1) lifestyles and (2) the structure of society, comparing past predictions with current reality. I conclude that most forecasts have gone awry because forecasters have ignored the human factor. I then outline some of the social problems, ethical dilemmas, and psychological maladies created by the computer revolution. These new problems were largely unforeseen and almost all involve difficulties in the way people relate to technology. The conclusion exhorts scientists and technologists to take more account of human needs and abilities when designing IT systems. Researchers, administrators, and business people will derive economic benefit from learning this central lesson of the IT revolution.