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Das Unternehmen bildet eine technische, juristische und ökonomische Einheit. Die Rolle Infrastrukt der Inormationsverarbeitung bei der Entwicklung des Unternehmens wächst unaufhörlich. Das Ziel dieser Abhandlung ist die Formulierung metodologischer Grundlagen zur Bewirtschaftung betrieblicher Informationsbestände, sowie Bestimmung des Einflusses der erreichten Ergebnisse dieses Einflusesses auf die...
The paper presents the review of simulation models for analysis of economical results of transport decisions. The models have been developed for last 20 years in different countries and for different scales of transport problems. The method used for creating those model - System Dynamics - links them. Author describes also a modular modelling idea for transportation systems.
The matter of each information system is set of data contained in the system. In a group of land information systems (LIS) these are the geographical data representing some land fragment in a descriptive and graphical way. The choice of LIS creation method depends on a chosen way of source data acquisition, which defines the following and specific action taken to adapt data for created system's needs...
Die Grundideen der Genetischen Algorithme (GA) sind der Genetik entnommen. Ein Genetischer Algorithmus (GA) ist ein Suchverfahren zur Lösung komplexer Optimierungsprobleme, das auf der Selektion und Reproduktion von Lösungen basiert. Der Begriff Genetischer Algorithmus wurde von John H. Holland (University of Michigan) Anfang der 70-iger Jahre geprägt. Die Lösung eines Problems sieht in etwa folgendermaßen...
The paper contains the results of questionnaire investigation made at 10 Szczecinian firms varying in size and specialisation. The investigation concerned the problem of evaluation of physical,individualistic, intellectual and moral potential of ordinary computer scientist.
In the article attention was drawn to the problems of communication between th( man end the computer. Issues connected with the change in perception of the relationship between the man and the computer were discussed. While so far the dominant point of view was the taking over some features of computer hardware, currently more and more often it is the computer system that is imitating the man. This...
The article is devoted to the evolution of author's research on possibility of using Sorter's event theory from accountancy to the company's information system. The author pays special attention to the changes introduced by himself in Sorter's theory. To confirm the legitimacy of these changes the author presents some elements from two of the research projects, that used the event theory, which he...
Developing of data warehouse is not trite act. However knowing possible critical situations one we can avoid from errors, which exclude success project like this. Most important is, so that both developers and users turned over oneself matter, that to build of data warehouse is a task, which has one's own beginning and finish. Yes, beginning can be defined, but finish when be located, it means, that...
Requirements specification become the strategic step in the development application cycle. User requirements are multidimensional and depend on organisational context. This paper presents the foundations of the original approach of requirements specification for the organisation. The proposed approach is composed of few general techniques and methods adapted to specificity of organisation requirements...
Every information system is secure like its weakest element, so you have to take all potential threats into consideration. Building secure computer systems is impossible without a proper security policy. Security policy is a set of rules and practical principles defining how information is classified, processed, stored, sent and presented. Implementation of information security policy document raises...
In report are introduced information systems of management. Special attention is sacrificed to systems helping processes of work in organization, which are new class of systems so called systems workflow management. Permit they on aid in management with firm, to plan certain events during and efficiently to eliminate competition.
Information technology investments is a very broad category. It includes purchase of a computer hardware, software, development of a computer network and implementation of an ERP system. Business value of an IT investments can vary depending on a type of the investment. It may be a cost reduction, cost avoidance, real-time management information support, better customer service or competitive advantage...
Dynamic development of Internet, increased access to the financial services by the Internet, making that Internet is very important communication and information carrier. Very important for this fact is security of the financial transactions. To secure this transaction, financial services needs save protocols like SSL, HTTPS, PCT or save fmansial transaction system linke SET. This article presents...
Der Zugang zur hoch Technologie ist heute kein Problem im Vergleich mit der Auffindung und Erhaltung in der Firma der hochqualifizierten Mitarbeiter. Zur Zeit steht der Mensch im Brennpunkt des Interesses des globalen Wettbewerbs, als der relevan-teste Produktionsfaktor und gleichzeitig der wertvollste Kapitał jedes Unternehmens. Daher immer mehr spricht man zu den Themen, die mit der Verbesserung...
In article attention was turned onto some aspects of utilization of electronic post office in everyday activity of firms. Syntetics were introduced Polish conditioning and tendencies, what see it were been possible among firms of telecommunicational market also.
The basic thesis of this article is presentation of new methods of knowledge extraction as an efficient solution to support decision processes in economic organiza-rion. There is presented the concept of data warehouse, it's role in enterprise and possibilities of this solution. Next part shows various methods of knowledge extraction: On-Line Analytical Processing (OLAP), Drill Down, Knowledge Data...
In this article become described historic aspect of data warehouse technology development. There are introduced chosen data warehouse definitions. Also is described different kind of OLAP systems and data warehouse characteristic features.
The paper presents the idea of object approach to system dynamics modelling of motor transport company. This approach allows for including techniques of artificial intelligence to the structure of simulation model. Authors propose to use the conception of genetic algorithms for selection of data for simulation experiments. The use of genetic algorithms idea permits to accelerate experiments and gives...
XML documents are widely used means of data interchange. The great advantage of XML, its textual form, is the reason of its main short-coming - verbosity. The binary encoding makes it possible to store information in a more economical way. The paper discuses binary encoding of XML documents using XML Schema. XML Schema is a document's structure definition, aimed at checking document's validity. Knowledge...
Correct estimation of complexity information banking systems is basic decisive factor about investment - success. In aim estimation of complexity system complies different methods. Method of Function Points gives here with best solution.
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