On distributed data processing in data grid architecture for a virtual repository

The article describes the problem of integration of distributed, heterogeneous and fragmented collections of data with application of the virtual repository and the data grid concept. The technology involves: wrappers enveloping external resources, a virtual network (based on the peer-topeer technology) responsible for integration of data into one global schema and a distributed index for speeding-up data retrieval. Authors present a method for obtaining data from heterogeneously structured external databases and then a procedure of integration the data to one, commonly available, global schema. The core of the described solution is based on the Stack-Based Query Language (SBQL) and virtual updatable SBQL views. The system transport and indexing layer is based on the P2P architecture

Architektura gridu bazodanowego oparta o podejście peer-to-peer

W artykule autorzy przedstawiają zaimplementowane i zweryfikowane poprzez w pełni funkcjonalny prototyp, podejście do realizacji obiektowego gridu bazodanowego przy wykorzystaniu wirtualnej sieci peer-to-peer omawiając szczegółowo najważniejszy element mechanizmu jakim jest proces integracji rozproszonych obiektów. W artykule przeprowadzono gruntowną analizę rozwiązań będących fundamentalnym zbiorem wiedzy na temat integracji danych. Zaprezentowano trójwarstwowy model intagracyjny oparty o aktualizowalne obiektowe perspektywy oraz prototyp gridowej warstwy pośredniej wykorzystującej sieć wirtualną peer-to-peer.In the article authors present an approach for realisation of object-oriented database grid using virtual peer-to-peer networking. The approach has been verified by implementation of fully functional prototype. The article shows in details a process for integration of distributed objects which is provided by the core mechanism of the prototype. Authors also described three-layer integration model based on obiect-oriented updateable views and middleware prototype containing mentioned peer-to-peer solution. Moreover the article contains analysis of solutions being the fundamental knowledge about integration of data

SusTrainable: Promoting Sustainability as a Fundamental Driver in Software Development Training and Education. 2nd Teacher Training, January 23-27, 2023, Pula, Croatia. Revised lecture notes

This volume exhibits the revised lecture notes of the 2nd teacher training organized as part of the project Promoting Sustainability as a Fundamental Driver in Software Development Training and Education, held at the Juraj Dobrila University of Pula, Croatia, in the week January 23-27, 2023. It is the Erasmus+ project No. 2020-1-PT01-KA203-078646 - Sustrainable. More details can be found at the project web site https://sustrainable.github.io/ One of the most important contributions of the project are two summer schools. The 2nd SusTrainable Summer School (SusTrainable - 23) will be organized at the University of Coimbra, Portugal, in the week July 10-14, 2023. The summer school will consist of lectures and practical work for master and PhD students in computing science and closely related fields. There will be contributions from Babe\c{s}-Bolyai University, E\"{o}tv\"{o}s Lor\'{a}nd University, Juraj Dobrila University of Pula, Radboud University Nijmegen, Roskilde University, Technical University of Ko\v{s}ice, University of Amsterdam, University of Coimbra, University of Minho, University of Plovdiv, University of Porto, University of Rijeka. To prepare and streamline the summer school, the consortium organized a teacher training in Pula, Croatia. This was an event of five full days, organized by Tihana Galinac Grbac and Neven Grbac. The Juraj Dobrila University of Pula is very concerned with the sustainability issues. The education, research and management are conducted with sustainability goals in mind. The contributions in the proceedings were reviewed and provide a good overview of the range of topics that will be covered at the summer school. The papers in the proceedings, as well as the very constructive and cooperative teacher training, guarantee the highest quality and beneficial summer school for all participants.Comment: 85 pages, 8 figures, 3 code listings and 1 table; editors: Tihana Galinac Grbac, Csaba Szab\'{o}, Jo\~{a}o Paulo Fernande

A Control System for Applications Testing in Linux

Táto práca sa zaoberá problematikou riadiaceho systému pre testovanie linuxových aplikácií. Práca poukazuje na dôležitosť testovania software a jeho kvality pomocou automatizovaných softwarových nástrojov. Red Hat Test System (RHTS) je jedným z mnohých testovacích nástrojov. Predstavené sú rozdielne prístupy k ich klasifikácii a vyhodnocovaniu. Vybrané nástroje sú vyhodnotené a porovnané so systémom RHTS. V tejto práci je navrhnutý systém pre neinteraktívne testovanie linuxových aplikácií s podporou pre RHTS testy a s dôrazom na budúce rozšírenia. Implementovaný systém je následne otestovaný pomocou navrhnutých testov a popísaných je niekoľko príkladov použitia.This thesis discusses the area of a control system for application testing in Linux. There is a need for testing software and its quality using automated software tools. Huge number of testing tools is available, Red Hat Test System (RHTS) being one of them. Dierent approaches to classi cation and evaluation of a testing tools are presented. Selected software testing tools were evaluated and compared with RHTS. The thesis then presents a design of a system for non-interactive application testing in Linux with support for RHTS tests and with focus on future enhancements. Implemented system is nally tested using proposed set of tests and several usage examples are described.

Journal of Telecommunications and Information Technology, 2014, nr 2

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