Learning environments ensure successful implementation of the learning process but not always the effective design of the e-learning objects (ELOs) and moreover, search and adaptation. A technological solution for the design of the learning objects, repositories, and the semantic web is needed. There are many open educational resources, but not many platforms assure the possibility to adapt learning objects. The existing developed multifunctional platforms do not ensure the effective ELOs adaptation as well as the process of design and adaptation in the multifunctional environment. They do not have an automatic search of ELOs in the semantic web, which is directly targeted to the specific objects in repositories of open educational resources and do not allow for adaptation of the already developed ELO by automatically assigning reusable objects. The structure of the papers consists of the literature review and overview of existing practices, research methodology, research results description and conclusions provided by authors. The objective of the research is to suggest, to teachers, a model for effective e-learning objects design, automatic search and adaptation processes in the multifunctional environment by developing a platform based on semantic technologies for e-learning objects design and adaptation.

The paper presents the successful transition into distance learning and shows the leaders’ role in higher education organisations. The authors discuss qualitative research carried out in 2021 on the perspective of the education leaders, their role and their significant impact on the educational process’s success and effectiveness. The pandemic period showed the weakness of educational organisations. That was a good chance to review existing situations and organisations’ preparation for the transition into distance learning. The research shows the weak points of the organisations and the impact of the higher education organisations’ leaders in managing the transition period by assuring high-quality education. The findings/conclusions obtained from the research focus/emphasise the importance of communication between university management and departments, the evaluation provided by students, the balance of traditional things and virtual tools, variety in teaching and learning, opportunities of the didactics and proactive communication. The article will be interesting both to researchers of higher education development problems in the direction of digitalisation (in particular, distance learning organisations) and to practitioners who are directly involved in modernising the educational process utilising online technologies.

We presented nine new black box delay fault models for non-scan sequential circuits at the functional level, when the primary inputs and primary outputs are available only. We examined the suggested fault models in two stages. During the first stage of the experiment, we selected the best two fault models for further examination on the base of criterion proposed in the paper. During the second stage, we used the functional delay fault model and two black box delay fault models from the first stage for test selection. The comparison of fault coverages was carried out for transition faults. The obtained results demonstrate that transition fault coverages of tests selected based on proposed black box fault models are similar to coverages of tests selected based on functional delay fault model that uses the inner state of circuit.

In this paper, we introduce a new combinatorial optimization problem entitled the color mix problem (CMP), which is a more general case of the grey pattern quadratic assignment problem (GP-QAP). Also, we propose an original hybrid genetic-iterated tabu search algorithm for heuristically solving the CMP. In addition, we present both analytical solutions and graphical visualizations of the obtained solutions, which clearly demonstrate the excellent performance of the proposed heuristic algorithm.