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Analysis of exploration testing approach and conclusions from implementation in software development

100%

Kędziora M. , Kałwak K. , Jóźwiak I. J. , Szczepanik M.

Zeszyty Naukowe. Organizacja i Zarządzanie / Politechnika Śląska

2020

tom z. 144

249--263

Purpose: The main purpose of the research is to examine the suitability of exploratory tests in the software testing process. Design/methodology/approach: An experiment, carried out for the sake of this study, consisted of two parts. First, a test was performed, and in the second part a survey was conducted, which allowed for the comparison of exploratory and test-based tests. Findings: The results of the tests indicated a slightly lower effectiveness of the exploratory approach, which may have been caused by the conditions of the experiment: the choice of the tested software, short duration of test sessions, participants lacking knowledge about the investigated software and experience in performing exploratory tests. Originality/value: Despite the weaker results obtained, the exploratory tests proved useful, as evidenced by the detection of distinctive errors, not found during tests based on test cases. In the survey, 90% of respondents confirmed the use of formalized test approach, based on test cases, while just over a half (57%) indicated having experience in conducting exploratory tests. Testers considered both approaches useful, addressing greater need for conducting formalized tests using test cases. Results included in the research allowed to indicate the qualities and shortcomings of the exploratory approach to software testing.

Wykorzystanie rachunku niecałkowitego rzędu w sterowaniu suwnicą 3D

100%

Kędziora M. , Leszczyński K. , Piotrowski R.

Pomiary Automatyka Robotyka

2024

tom R. 28, nr 1

63--69

Suwnica 3D jest obiektem stosowanym w różnych gałęziach przemysłu. Z punktu widzenia sterowania, jest to system dynamiczny, nieliniowy i wielowymiarowy. W artykule zaprojektowano dwa układy regulacji: z klasycznym regulatorem PID oraz z regulatorem PID ułamkowego rzędu. Przedstawiono analizę porównawczą zaprojektowanych układów regulacji.

The 3D crane is an object used in various industries. From a control point of view, it is a dynamic, non-linear and multidimensional system. In this paper, two control systems are designed: with a classical PID controller and with a fractional-order PID controller. A comparative analysis of the designed control systems is presented.