Web sites, which enable watching video clips online, have become very popular nowadays. One of the main problems with regard to that is the highly increasing workload of the machines that support those sites. The text describes the structure of Apache HTTP Server and focuses on the parameters that influence the efficiency of its usage. It also carefully… (More)
An analysis of the potential formalism, used in the hierarchical system theory is performed, addressing the autonomic computing system design. In that manner, self management of the overall autonomic system can be achieved by influencing the local resources and the goals of the local computing subsystems. Thus, a quantitative formalization of the control… (More)
The portfolio optimization is implemented as e-service through Internet. Four-tier client-server model of WAN-based information system is designed satisfying the intersection of several domains: financial investments, optimization theory and information technologies.
An analysis of the general functions of the Enterprise Resource Planning (ERP) systems is performed. Historical development of ERP is given. Analysis and comparisons of three open source ERP are provided.
An analysis of the interactions between different resources in heterogeneous IT environment is given. The benefits of the Distributed Management Task Forces (DMTF) policies are assessed. The object-oriented information model CIM (Common Information Model) is studied. The relation between CIM and its XML implementation was evaluated. Because non-unique… (More)
Computational efficiency of the evaluations is assessed with the number of floating point operations (flops) in MATLAB environment. The initial high order matrix is decomposed to smaller matrices and analytical relations are applied. The area of application of these analytical relations is estimated. This research addresses problems, related to the… (More)