The BERG faculty students readiness for information technologies study

The contribution deals with the reconnaissance of our students readiness to study information technologies, its interpretation, comparison with some published data as well as with a completion and evaluation of the reconnaissance. It specifies methods and processes of evaluation, structure, sections and questions of the reconnaissance. The reconnaissance was oriented particularly to the evaluation of knowledge in the information technologies area acquired at secondary schools. It was completed in a classical paper form as a preparation for the realization and utilization of questionnaire in the electronic form. The following is constructed using modern internet and database technologies and presents extensive possibilities of evaluation answers respondents. The results of the reconnaissance are presented in the form distribution (sex, domicile, secondary school), secondary school influence, work with a computer, operating and exploitation of internet technologies, familiarity with operating systems and typical applications software and programming languages as well as the interest in information technologies of respondents. The results are compared with some other published data and future perspectives of completion and its evaluation of completion are outlined

The Analysis of Net Factors Influence on Remote Process Monitoring

The contribution deals with the process monitoring based on www technologies. It also researches the influence of clients number and the network transfer rate on the process monitoring quality. The process monitoring is realized by the distributed application. The server part of application (written in Delphi) acquires actually measured data and sends them through the socket communication channel to the client. The client part of application is realized as applet (written in Java), which receives data from the server and executes their processing. There are some factors influencing the quality of the clientserver communication on the server and client side, such as the number of running tasks, exploitation of system recourses, number of connected clients and network rate. Their influences are presented in graphical form. The first course represents a monitored signal, the second the accuracy of servers time sending, the third the accuracy of clients receiving and the fourth the duration of the packet transfer between the client and server. The computer working as a server is marked as S, the client is marked as K. The influence of client quality showed that the usable sample period is about 0.1s. By the study of quality of server S1 the applicable sample period 0.17s was specified. For shorter sample periods, the client isnt capable to process received data and so occurs data buffering, which causes the time shift concerning to signal on server side. In this area monitoring is not desirable. The influence of client number showed that in the same time can correctly operate 19 to 33 clients at sample periods 0.085s to 0.33s. The influence of transfer rate showed applicability of monitoring so for local as for remote distances of clients

The electronic identification, signature and security of information systems

The contribution deals with the actual methods and technologies of information and communication systems security. It introduces the overview of electronic identification elements such as static password, dynamic password and single sign-on. Into this category belong also biometric and dynamic characteristics of verified person. Widespread is authentication based on identification elements ownership, such as various cards and authentication calculators. In the next part is specified a definition and characterization of electronic signature, its basic functions and certificate categories. Practical utilization of electronic signature consists of electronic signature acquirement, signature of outgoing email message, receiving of electronic signature and verification of electronic signature. The use of electronic signature is continuously growing and in connection with legislation development it exercises in all resorts

The Real time Monitoring Of Technological Processes based on www technologies

The contribution deals with the possibilities of acquisition information of technological process development in the real time. The ways and methods of representation of this information on client site in the www page form are discussed. The application of one of this method is illustrated