<abstract xmlns="http://www.w3.org/1999/xhtml">The paper presents a concept and the outline of the implementation of a hybrid approach to modelling and solving constrained problems. Two environments of mathematical programming (in particular, integer programming) and declarative programming (in particular, constraint logic programming) were integrated. The strengths of integer programming and constraint logic programming, in which constraints are treated in a different way and different methods are implemented, were combined to use the strengths of both. The hybrid method is not worse than either of its components used independently. The proposed approach is particularly important for the decision models with an objective function and many discrete decision variables added up in multiple constraints. To validate the proposed approach, two illustrative examples are presented and solved. The first example is the authors’ original model of cost optimisation in the supply chain with multimodal transportation. The second one is the two-echelon variant of the well-known capacitated vehicle routing problem.</abstract>

A Hybrid Method for the Modelling and Optimisation of Constrained Search Problems

<abstract xmlns="http://www.w3.org/1999/xhtml">This article discusses how the restructuring linked with broadly defined informatisation program can be used to gain a strategic competitive advantage in business. This problem is illustrated with an example representing the introduction of information technologies in the Municipal Transport Company (Miejskie Przedsiebiorstwo Komunikacyjne), as well as analysis and evaluation of the implementation of human resource management system. The analysis was carried out in the operational and strategic areas.</abstract>

Implementation of Enterprise Systems as A Strategic Move for Strengthening a Company’s Competitive Advantage

<abstract xmlns="http://www.w3.org/1999/xhtml">This work discusses the problem of selecting methods for valuing the costs and estimating the time of implementing computer systems in cases when system modification is necessary. The methods presented in literature are reviewed and the stages of strategic phase of implementation characterised. On the basis of the analysis of data required by each method and the data obtained at different stages, appropriate selection of methods for each stage was proposed.</abstract>

Usefulness of Software Valuation Methods at Initial Stages of ERP Implementation

<abstract xmlns="http://www.w3.org/1999/xhtml">This paper presents an investigation of the relevant factors related to the construction of a resource model which is designed to be useful in the management processes of the operation of critical infrastructure (CI) for state emergencies. The genesis of the research lay in the perceived need for effective protection of multidimensional CI methodologies, and it was influenced by the nature of the physical characteristics of the available resources. It was necessary to establish a clear structure and well defined objectives and to assess the functional and structural resources required, as well as the potential relational susceptibilities deriving from a number of possible threats and the possible seriousness of a specific range of incidents and their possible consequences. The interdependence of CI stocks is shown by the use of tables of resource classes. The dynamics of the interaction of CI resources are modeled by examining how using clusters of potential risks can at any given time create a class of compounds related to susceptibilities and threats to the resources. As a result, the model can be used to conduct multi-dimensional risk calculations for crisis management CI resource configurations.</abstract>

The Resource Hazards Model for the Critical Infrastructure of the State Emergency Management Process

<abstract xmlns="http://www.w3.org/1999/xhtml">This paper presents the issue of assessing the validity and effectiveness of implementing a Business Intelligence system in an IT Support Organization. This entity provides IT services to external clients involving, in particular, the storage and processing of large amounts of data. The vast amount of realized projects and also incidents reported in connection with those projects prevented effective decisions from being made without the support of dedicated technologies. The authors present the problems encountered by the studied entity and describe the tool that was selected to improve the situation. The aim of this study is to measure and describe the key processes in the organization on the basis of prepared aggregated measures, first prior to the implementation of the BI system and then a year after its implementation. The evaluation model developed by the authors allowed the assessment of the key aspects of the company’s operation over 2 years. It thus helped decision makers to establish whether the decision to implement the Business Intelligence system was correct or not.</abstract>

Implementation of Business Intelligence in An IT Organization - The Concept of An Evaluation Model

<abstract xmlns="http://www.w3.org/1999/xhtml">This article organizes knowledge on cloud computing presenting the classification of deployment models, characteristics and service models. The author, looking at the problem from the entrepreneur’s perspective, draws attention to the differences in the benefits depending on the cloud computing deployment models and considers an effective way of selection of cloud computing services according to the specificity of organization. Within this work, a thesis statement was considered that in economic terms the cloud computing is not always the best solution for your organization. This raises the question, “What kind of tools should be used to estimate the usefulness of the model cloud computing services in the enterprise?”</abstract>

Cloud Computing as a Tool for Improving Business Competitiveness

<abstract xmlns="http://www.w3.org/1999/xhtml">Characterization theory was developed in the 1970s by a member of the Russian Academy of Sciences, a prominent cybernetics V.A. Gorbatov, and became the nucleus of an international school. Many of today’s academy graduates make a new generation of scholars, more than 150 doctors and assistant professors, developing a new descriptive theory of cybernetic complex systems, based on the canon of the so-called characterization principle, binding the sets of y¥a functioning models and x¥bstructure models using the paradigm of monotone mappings of the considered system. This article presents an overview of the following problems: (1) the issues of functional-structural connection systems from the point of view of their design correctness; (2) the basic postulates of the characterization principle; (3) the nature of interaction between system objects; (4 and 5) mechanisms and functions for initiation of the operation; (6) the mechanisms of control and reaction functions; (7 and 8) the analytical form of initiation function and a network initialization function and (9) the axiom of extensionality (J), feasibility (R) and compatibility (Z).</abstract>

V.A. Gorbatov Theory of Characterization - Principles and Examples

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